NLN PAX Pre-Admission Examination — Questions and Answers
Question 1: Which part of the neuron receives incoming signals from other neurons?
- Synaptic terminal
- Axon
- Dendrites (Correct answer)
- Myelin sheath
Correct answer: Dendrites
Dendrites are the branching extensions of a neuron that receive incoming signals and transmit them toward the cell body.
Question 2: What are the characteristics of the person with genes from possibility 1?
- Tall with black hair
- Short with black hair
- Tall with red hair (Correct answer)
- Short with red hair
Correct answer: Tall with red hair
Explanation: <br> Possibility 1 corresponds to a person with the TR gene combination, which means the person is tall with red hair.
Question 3: Which of the following has the longest wavelength?
- Ultraviolet light
- Visible light
- X-rays
- Radio waves (Correct answer)
Correct answer: Radio waves
Radio waves have the longest wavelengths in the electromagnetic spectrum.
Question 4: A nurse works 8-hour shifts and earns $22 per hour. How much does she earn in a 5-day workweek?
- $800
- $660
- $760
- $880 (Correct answer)
Correct answer: $880
8 hours × $22 × 5 days = $880.
Question 5: What does Ohm's Law state?
- V = I / R
- V = I × R (Correct answer)
- V = I² × R
- V = I + R
Correct answer: V = I × R
Ohm's Law states that Voltage (V) equals Current (I) multiplied by Resistance (R).
Question 6: In PAX, what is the most important aspect of advanced concepts?
- Ignoring established best practices
- Understanding core principles and their practical applications (Correct answer)
- Focusing solely on theoretical frameworks
- Memorizing facts without understanding context
Correct answer: Understanding core principles and their practical applications
The most important aspect is understanding core principles and how they apply in practice, as this enables effective professional performance.
Question 7: In Pre-Admission Examination, what is the purpose of the scientific method in human anatomy?
- To replace professional judgment entirely
- To guarantee specific experimental outcomes
- To provide a systematic approach for investigating questions and testing hypotheses (Correct answer)
- To eliminate the need for observation
Correct answer: To provide a systematic approach for investigating questions and testing hypotheses
The scientific method provides a structured, systematic approach for asking questions, forming hypotheses, designing experiments, collecting data, and drawing evidence-based conclusions.
Question 8: Which allergy does the article state is thought to be the most common cause of food-related death?
- Poison oak
- Tree nut
- Peanut (Correct answer)
- Bee sting
Correct answer: Peanut
Explanation: <br> The second sentence of the first paragraph states that peanut allergy is the most common cause of food-related death.
Question 9: A Pre-Admission Examination professional needs to calculate a 15% increase on a base value of 240. What is the result?
- 255
- 288
- 264
- 276 (Correct answer)
Correct answer: 276
15% of 240 = 0.15 × 240 = 36. Adding this to the base: 240 + 36 = 276.
Question 10: What term describes the body's ability to maintain a stable internal environment despite external changes?
- Osmosis
- Homeostasis (Correct answer)
- Metabolism
- Catabolism
Correct answer: Homeostasis
Homeostasis is the process by which the body uses regulatory mechanisms to maintain stable internal conditions such as temperature, pH, and blood glucose.
Question 11: What type of wave is sound?
- Surface wave
- Electromagnetic wave
- Transverse wave
- Longitudinal wave (Correct answer)
Correct answer: Longitudinal wave
Sound is a longitudinal wave where particle displacement is parallel to wave propagation.
Question 12: By what date do Duke University allergy experts expect to offer a treatment for peanut allergies?
- 2008
- 2010
- 2009
- 2013 (Correct answer)
Correct answer: 2013
Explanation: <br> The second paragraph of the passage notes that in 2008, Duke experts stated that they expected to offer treatment in five years. Five years from 2008 is 2013.
Question 13: Which of the following correctly states the relationship between work, force, and distance?
- W = F × d (Correct answer)
- W = F / d
- W = F + d
- W = d / F
Correct answer: W = F × d
Work (W) equals force (F) multiplied by distance (d): W = F × d.
Question 14: What is 15% of 240?
- 36 (Correct answer)
- 24
- 30
- 42
Correct answer: 36
15% of 240 = 0.15 × 240 = 36.
Question 15: A ball is dropped from rest. Which best describes its motion as it falls (ignoring air resistance)?
- Decreasing acceleration
- Constant acceleration downward (Correct answer)
- Decreasing speed
- Constant speed
Correct answer: Constant acceleration downward
Gravity causes constant acceleration of approximately 9.8 m/s² downward.
Question 16: What is the greatest common factor (GCF) of 36 and 48?
- 12 (Correct answer)
- 9
- 6
- 18
Correct answer: 12
The factors of 36 include 12 (36 = 12 × 3) and 12 also divides 48 (48 = 12 × 4), making 12 the GCF.
Question 17: Which of the following is an example of a conductor?
- Rubber
- Copper (Correct answer)
- Glass
- Wood
Correct answer: Copper
Copper is a metal that allows electrons to flow freely, making it a good electrical conductor.
Question 18: The hospital staff listened to the chief of staff's fervent speech regarding proposed changes at the facility. <br><br> Fervent means:
- Dispassionate
- Emotional (Correct answer)
- Lengthy
- Enthusiastic
Correct answer: Emotional
Explanation: <br> Emotional is the only true synonym for fervent, which means "showing great depth of feeling or passionate enthusiasm." Therefore, dispassionate, which means "uninfluenced by emotion or personal feelings," is an antonym. Enthusiastic implies urgency of desire or interest, and this word is synonymous with eager. Lengthy (or long) is unrelated to the term fervent.
Question 19: What is the relationship between theory and practice in Pre-Admission Examination arithmetic?
- Practice is only important; theory is unnecessary
- Theory replaces the need for any practical experience
- Theory provides the foundation and framework that guides effective practical application (Correct answer)
- Theory and practice are completely unrelated
Correct answer: Theory provides the foundation and framework that guides effective practical application
Theory and practice are complementary: theoretical knowledge provides the conceptual framework and understanding that guides effective, evidence-based practical application in professional settings.
Question 20: Which law states that for every action there is an equal and opposite reaction?
- Newton's Second Law
- Newton's Third Law (Correct answer)
- Hooke's Law
- Newton's First Law
Correct answer: Newton's Third Law
Newton's Third Law states that forces come in action-reaction pairs that are equal in magnitude and opposite in direction.
Question 21: Which type of muscle tissue is found in the walls of internal organs such as the intestines and blood vessels?
- Striated muscle
- Smooth muscle (Correct answer)
- Skeletal muscle
- Cardiac muscle
Correct answer: Smooth muscle
Smooth muscle is involuntary and non-striated, found in hollow organs such as intestines, blood vessels, and the bladder.
Question 22: Why is interdisciplinary collaboration important in PAX applied practice?
- It is only relevant for research activities
- Collaboration slows down decision-making without benefits
- It brings diverse perspectives that enhance problem-solving and outcomes (Correct answer)
- Each discipline should work in complete isolation
Correct answer: It brings diverse perspectives that enhance problem-solving and outcomes
Interdisciplinary collaboration combines diverse expertise and perspectives, leading to more comprehensive analysis, creative solutions, and improved outcomes.
Question 23: Which blood vessel carries oxygenated blood back to the heart?
- Pulmonary artery
- Aorta
- Superior vena cava
- Pulmonary vein (Correct answer)
Correct answer: Pulmonary vein
Explanation: <br> Generally speaking, veins carry deoxygenated blood and arteries carry oxygenated blood, but there are exceptions. The pulmonary veins carry oxygenated blood from the lungs to the left side of the heart, and the pulmonary arteries carry deoxygenated blood from the right side of the heart to the lungs. The aorta takes oxygenated blood away from the left side of the heart and distributes it throughout the body. The superior vena cava returns unoxygenated blood back to the right side of the heart, to then be distributed through the lungs and reoxygenated.
Question 24: How does continuous improvement apply to PAX applied practice?
- Through avoiding all forms of self-assessment
- Through regular evaluation of practices and implementation of evidence-based updates (Correct answer)
- By maintaining the same procedures indefinitely
- By making changes only when problems occur
Correct answer: Through regular evaluation of practices and implementation of evidence-based updates
Continuous improvement involves systematically evaluating current practices and implementing evidence-based updates to enhance performance and outcomes.
Question 25: What is the next number in the sequence: 3, 6, 12, 24, ___?
- 42
- 48 (Correct answer)
- 36
- 30
Correct answer: 48
Each term is multiplied by 2, so 24 × 2 = 48.
Question 26: Which fraction is largest: 2/3, 3/5, 5/8, or 7/12?
- 2/3 (Correct answer)
- 3/5
- 7/12
- 5/8
Correct answer: 2/3
Converting to decimals: 2/3 ≈ 0.667, 3/5 = 0.600, 5/8 = 0.625, 7/12 ≈ 0.583, so 2/3 is largest.
Question 27: What will happen to light waves as they hit a convex lens?
- They will be reflected and converge.
- They will be refracted and converge. (Correct answer)
- They will be refracted and diverge.
- They will be reflected and diverge.
Correct answer: They will be refracted and converge.
Explanation: <br> When light waves hit a convex lens, they are refracted and converge. A convex lens curves or bulges with the middle being thicker and the edges thinner. A magnifying glass is an example. Light rays are refracted by different amounts as they pass through the lens. After light rays pass through, they converge at a point called the focus. An object viewed with a magnifying glass looks bigger because the lens bends the rays inward. Choice B would indicate a concave lens as it would cause the light to be refracted and diverge. <br><br> Light is not reflected in this case, so neither choice C nor D would be applicable.
Question 28: A patient needs to take 3 tablets per day for 14 days. How many tablets are needed in total?
- 42 (Correct answer)
- 38
- 48
- 36
Correct answer: 42
3 tablets × 14 days = 42 tablets.
Question 29: What is 5/6 × 3/10?
- 1/4 (Correct answer)
- 1/5
- 1/3
- 15/60
Correct answer: 1/4
5/6 × 3/10 = 15/60 = 1/4.
Question 30: How does continuous improvement apply to PAX advanced concepts?
- Through avoiding all forms of self-assessment
- By making changes only when problems occur
- By maintaining the same procedures indefinitely
- Through regular evaluation of practices and implementation of evidence-based updates (Correct answer)
Correct answer: Through regular evaluation of practices and implementation of evidence-based updates
Continuous improvement involves systematically evaluating current practices and implementing evidence-based updates to enhance performance and outcomes.
Question 31: Which type of energy is stored in a compressed spring?
- Kinetic energy
- Chemical energy
- Thermal energy
- Potential energy (Correct answer)
Correct answer: Potential energy
A compressed spring stores elastic potential energy.
Question 32: In Pre-Admission Examination, why is critical thinking knowledge important for professional certification?
- It is only required for administrative purposes
- It is important only for entry-level positions
- It has no practical relevance to daily work
- It demonstrates competence and ensures practitioners meet established standards (Correct answer)
Correct answer: It demonstrates competence and ensures practitioners meet established standards
Professional certification in specific knowledge areas demonstrates that practitioners have met established competency standards, ensuring quality of service and public protection.
Question 33: In Pre-Admission Examination, what is homeostasis?
- A rapid increase in body temperature
- The process of cell division
- The body's ability to maintain a stable internal environment despite external changes (Correct answer)
- A type of immune response
Correct answer: The body's ability to maintain a stable internal environment despite external changes
Homeostasis is the process by which biological systems maintain internal stability and balance (temperature, pH, glucose levels, etc.) while adjusting to changing external conditions.
Question 34: What is the relationship between theory and practice in Pre-Admission Examination critical thinking?
- Theory and practice are completely unrelated
- Practice is only important; theory is unnecessary
- Theory replaces the need for any practical experience
- Theory provides the foundation and framework that guides effective practical application (Correct answer)
Correct answer: Theory provides the foundation and framework that guides effective practical application
Theory and practice are complementary: theoretical knowledge provides the conceptual framework and understanding that guides effective, evidence-based practical application in professional settings.
Question 35: Which of the following correctly describes the trait LI, if "L" represents tallness and "|" represents shortness?
- Heterozygous phenotype and tall genotype
- Homozygous genotype and short phenotype
- Homozygous phenotype and short genotype
- Heterozygous genotype and tall phenotype (Correct answer)
Correct answer: Heterozygous genotype and tall phenotype
Explanation: <br> The trait LI describes the genotype of the person or the traits for the genes they carry. It is heterozygous because it contains a dominant gene and a recessive gene. Tallness is the phenotype of the person or the physical expression of the genes they carry because L for tallness is the dominant gene.
Question 36: What is the principle that states energy cannot be created or destroyed, only converted?
- Boyle's Law
- Ohm's Law
- Law of Conservation of Energy (Correct answer)
- Newton's Third Law
Correct answer: Law of Conservation of Energy
The Law of Conservation of Energy states that the total energy in a closed system remains constant.
Question 37: Which text structure organizes information by describing a problem and then presenting solutions?
- Problem-solution structure (Correct answer)
- Description structure
- Chronological order
- Compare and contrast
Correct answer: Problem-solution structure
Problem-solution text structure presents an issue or challenge followed by one or more proposed solutions, commonly used in persuasive and informational writing.
Question 38: Which level of biological organization represents the most complex in Pre-Admission Examination biology concepts?
- Tissue
- Ecosystem (Correct answer)
- Organ
- Cell
Correct answer: Ecosystem
The hierarchy from simplest to most complex goes: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.
Question 39: Which approach is most effective for mastering critical thinking in Pre-Admission Examination?
- Memorizing textbook definitions without understanding
- Relying solely on on-the-job experience
- Studying only immediately before examinations
- Combining theoretical study with practical application and regular review (Correct answer)
Correct answer: Combining theoretical study with practical application and regular review
The most effective approach combines theoretical understanding with practical application, reinforced by regular review and assessment, enabling deeper comprehension and long-term retention.
Question 40: In Pre-Admission Examination, what is homeostasis?
- A type of immune response
- A rapid increase in body temperature
- The process of cell division
- The body's ability to maintain a stable internal environment despite external changes (Correct answer)
Correct answer: The body's ability to maintain a stable internal environment despite external changes
Homeostasis is the process by which biological systems maintain internal stability and balance (temperature, pH, glucose levels, etc.) while adjusting to changing external conditions.
Question 41: Why is interdisciplinary collaboration important in PAX advanced concepts?
- It is only relevant for research activities
- Each discipline should work in complete isolation
- Collaboration slows down decision-making without benefits
- It brings diverse perspectives that enhance problem-solving and outcomes (Correct answer)
Correct answer: It brings diverse perspectives that enhance problem-solving and outcomes
Interdisciplinary collaboration combines diverse expertise and perspectives, leading to more comprehensive analysis, creative solutions, and improved outcomes.
Question 42: The force of gravity between two objects increases as their masses:
- Become equal
- Increase (Correct answer)
- Stay the same
- Decrease
Correct answer: Increase
According to Newton's Law of Universal Gravitation, gravitational force is directly proportional to the product of the masses.
Question 43: Which skill is most critical for success in PAX applied practice?
- Relying on intuition without supporting evidence
- Speed of task completion without quality checks
- Avoiding collaboration with other professionals
- Analytical thinking and evidence-based decision making (Correct answer)
Correct answer: Analytical thinking and evidence-based decision making
Analytical thinking and evidence-based decision making are essential for evaluating situations and making informed professional decisions.
Question 44: When two objects collide and bounce off each other, this is called a:
- Inelastic collision
- Perfectly inelastic collision
- Gravitational collision
- Elastic collision (Correct answer)
Correct answer: Elastic collision
An elastic collision is one in which both momentum and kinetic energy are conserved.
Question 45: What is a controlled variable in an experiment related to Pre-Admission Examination?
- The variable that is intentionally changed
- A variable that changes randomly
- A factor that is kept constant throughout the experiment (Correct answer)
- The outcome that is measured
Correct answer: A factor that is kept constant throughout the experiment
Controlled variables (constants) are factors that are deliberately kept the same throughout an experiment to ensure that any observed changes are due to the independent variable being tested.
Question 46: Where does the majority of nutrient absorption occur in the digestive system?
- Large intestine
- Small intestine (Correct answer)
- Stomach
- Esophagus
Correct answer: Small intestine
The small intestine, through villi and microvilli, is the primary site for absorbing proteins, fats, and carbohydrates into the bloodstream.
Question 47: Which of the following is NOT a type of cuisine the passage suggests often contains peanuts?
- African
- Vietnamese
- Italian (Correct answer)
- Mexican
Correct answer: Italian
Explanation: <br> The last sentence in paragraph five lists the cuisines in which one should watch for peanuts. Italian is not listed.
Question 48: Which of the following is the most likely pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions (H+)?
- 9 (Correct answer)
- 2
- 7
- 6
Correct answer: 9
Explanation: <br> A solution that contains more hydroxide ions than hydrogen ions is a base, and bases have a pH greater than 7, so the only possible answer is choice D, 9.
Question 49: The medical center's chief operating officer is an exponent of patient's rights. <br><br> Exponent means:
- Advocate (Correct answer)
- Adherent
- Opponent
- Critic
Correct answer: Advocate
Explanation: <br> An exponent is an advocate, someone who actively promotes or favors a cause. Adherent is a somewhat related term meaning, "follower, someone who follows the opinions or teachings of others." Opponent is an antonym signifying, "one who takes an opposing position." Critic is a near antonym, which in this sentence would mean "fault-finder."
Question 50: In Pre-Admission Examination, what is the purpose of the scientific method in chemistry basics?
- To provide a systematic approach for investigating questions and testing hypotheses (Correct answer)
- To guarantee specific experimental outcomes
- To replace professional judgment entirely
- To eliminate the need for observation
Correct answer: To provide a systematic approach for investigating questions and testing hypotheses
The scientific method provides a structured, systematic approach for asking questions, forming hypotheses, designing experiments, collecting data, and drawing evidence-based conclusions.
Question 51: What is the normal resting heart rate range for a healthy adult?
- 40–60 beats per minute
- 100–120 beats per minute
- 120–150 beats per minute
- 60–100 beats per minute (Correct answer)
Correct answer: 60–100 beats per minute
A normal resting heart rate for adults is 60–100 beats per minute; below 60 is bradycardia and above 100 is tachycardia.
Question 52: The 'fight or flight' stress response is controlled by which division of the nervous system?
- Sympathetic nervous system (Correct answer)
- Parasympathetic nervous system
- Somatic nervous system
- Central nervous system
Correct answer: Sympathetic nervous system
The sympathetic nervous system activates the fight-or-flight response, increasing heart rate, dilating airways, and redirecting blood to muscles.
Question 53: What does "context clues" mean in Pre-Admission Examination reading comprehension?
- Using surrounding words and sentences to determine the meaning of unfamiliar terms (Correct answer)
- Looking up every word in a dictionary
- Skipping unfamiliar words entirely
- Reading only the first sentence of each paragraph
Correct answer: Using surrounding words and sentences to determine the meaning of unfamiliar terms
Context clues are hints provided by surrounding words, phrases, and sentences that help readers infer the meaning of unfamiliar vocabulary without external reference materials.
Question 54: If x − 7 = 15, what is x?
- 8
- 18
- 22 (Correct answer)
- 23
Correct answer: 22
x = 15 + 7 = 22.
Question 55: Which level of biological organization represents the most complex in Pre-Admission Examination human anatomy?
- Cell
- Organ
- Ecosystem (Correct answer)
- Tissue
Correct answer: Ecosystem
The hierarchy from simplest to most complex goes: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.
Question 56: An object in motion will remain in motion unless acted upon by an external force. This is Newton's:
- Third Law
- Fourth Law
- Second Law
- First Law (Correct answer)
Correct answer: First Law
Newton's First Law (law of inertia) states that objects maintain their state of motion unless a net force acts on them.
Question 57: If a Pre-Admission Examination project budget is $50,000 and actual spending is $57,500, what is the percentage over budget?
- 7.5%
- 12.5%
- 10%
- 15% (Correct answer)
Correct answer: 15%
Over budget amount = $57,500 - $50,000 = $7,500. Percentage = ($7,500 / $50,000) × 100 = 15%.
Question 58: What is the primary function of bile in the digestive process?
- Breaking down proteins into amino acids
- Converting starch into simple sugars
- Emulsifying fats to increase surface area for digestion (Correct answer)
- Neutralizing hydrochloric acid from the stomach
Correct answer: Emulsifying fats to increase surface area for digestion
Bile emulsifies fats by breaking large fat droplets into smaller ones, greatly increasing the surface area available for lipase enzymes to act upon.
Question 59: Which molecule in red blood cells binds to oxygen for transport throughout the body?
- Fibrinogen
- Hemoglobin (Correct answer)
- Myoglobin
- Albumin
Correct answer: Hemoglobin
Hemoglobin is the iron-containing protein in red blood cells that binds oxygen in the lungs and releases it in body tissues.
Question 60: If a number is increased by 20% and the result is 84, what was the original number?
- 68
- 72
- 70 (Correct answer)
- 63
Correct answer: 70
Let x be the original: 1.20x = 84, so x = 84 ÷ 1.20 = 70.
Question 61: In Pre-Admission Examination, why is word knowledge knowledge important for professional certification?
- It demonstrates competence and ensures practitioners meet established standards (Correct answer)
- It is only required for administrative purposes
- It has no practical relevance to daily work
- It is important only for entry-level positions
Correct answer: It demonstrates competence and ensures practitioners meet established standards
Professional certification in specific knowledge areas demonstrates that practitioners have met established competency standards, ensuring quality of service and public protection.
Question 62: What is the missing value: 5 : 20 = 8 : ___?
- 32 (Correct answer)
- 40
- 24
- 28
Correct answer: 32
The ratio is 1:4, so 8 × 4 = 32.
Question 63: What is the primary function of the mitochondria in cells relevant to Pre-Admission Examination?
- To remove waste products
- To store genetic information
- To synthesize proteins
- To produce energy (ATP) through cellular respiration (Correct answer)
Correct answer: To produce energy (ATP) through cellular respiration
Mitochondria are the "powerhouses" of the cell, converting nutrients into ATP (adenosine triphosphate) through cellular respiration, providing the energy needed for cellular functions.
Question 64: In PAX, what is the relationship between standards and advanced concepts?
- Standards only apply to entry-level professionals
- Standards provide the framework and benchmarks that guide professional practice (Correct answer)
- Standards are suggestions that can be freely ignored
- There is no relationship between standards and practice
Correct answer: Standards provide the framework and benchmarks that guide professional practice
Professional standards establish the framework, benchmarks, and expectations that guide practice, ensuring consistency, quality, and accountability.
Question 65: Which approach is most effective for mastering arithmetic in Pre-Admission Examination?
- Combining theoretical study with practical application and regular review (Correct answer)
- Memorizing textbook definitions without understanding
- Studying only immediately before examinations
- Relying solely on on-the-job experience
Correct answer: Combining theoretical study with practical application and regular review
The most effective approach combines theoretical understanding with practical application, reinforced by regular review and assessment, enabling deeper comprehension and long-term retention.
Question 66: Which hormone primarily lowers blood glucose by promoting its uptake into cells?
- Adrenaline
- Insulin (Correct answer)
- Glucagon
- Cortisol
Correct answer: Insulin
Insulin, produced by beta cells of the pancreas, lowers blood glucose by facilitating cellular uptake and promoting glucose storage as glycogen.
Question 67: Suzanne is exploring contraception options. She is sexually active with her long-term partner but does not plan on having children for the foreseeable future, so she would prefer a long-lasting and low-maintenance method. She also would rather use a nonhormonal contraceptive. Which type of contraception is the most appropriate for her preferences?
- Female condom
- Progestin implant
- Copper intrauterine device (IUD) (Correct answer)
- Depo-Provera shot
Correct answer: Copper intrauterine device (IUD)
Explanation: <br> A copper IUD is a 99 percent effective non-hormonal contraception that lasts up to 12 years. It is the most appropriate option since Suzanne would like a long-term solution that requires little maintenance. While progestin implants are equally effective and last up to five years, implants release the hormone progestin to prevent ovulation and obstruct sperm by thickening cervical mucus. Depo-Provera shots - also called Depo shots or birth control shots—are also 99 percent effective. However, birth control shots must be administered every three months. Female or internal condoms are less than 80 percent effective and must be used every time that a couple has sexual intercourse. Similarly, male condoms must be used every time but are slightly more effective (approximately 87 percent effective). Condoms are the only contraceptive option of those listed that also prevent STD transmission.
Question 68: Jessica goes to the gym locker room after completing her workout and finds a woman lying on the ground. After she checks the scene for safety, she checks for responsiveness, breathing, and bleeding. The woman does not appear to be conscious or breathing, and Jessica cannot feel her pulse. Jessica calls 911 and places the woman on her back. Jessica is not CPR-certified. What is the next step the 911 operator should direct Jessica to take?
- Find and attach an automated external defibrillator (AED) (Correct answer)
- Immediately initiate chest compressions while calling for help
- Deliver a cycle of 100 chest compressions before checking for signs of life
- Conduct a blind swipe of the mouth to remove any possible foreign objects
Correct answer: Find and attach an automated external defibrillator (AED)
Explanation: <br> The first step a person should take when encountering a scenario like this is to call 911 and follow the dispatcher's instructions. Usually, the second step is to find an AED as it can help to guide a trained or untrained person through CPR, monitor vital signs, and administer shocks if necessary. In this situation, After checking for responsiveness, breathing, and pulse and calling 911, Jessica would most likely be guided by the operator through the use of an AED. AEDs are intended to be usable by anyone, even if the individual is not CPR-certified. The American Heart Association recommends that an untrained person administer hands-on CPR. Hands-only CPR consists of chest compressions delivered at a rate of 100 beats per minute and a depth of two inches. Blind swipes of the mouth to remove foreign objects are no longer encouraged due to the risks for further lodging the object into the airway. Conventional CPR consists of giving two breaths after every 30 compressions.
Question 69: What is a controlled variable in an experiment related to Pre-Admission Examination?
- The variable that is intentionally changed
- A factor that is kept constant throughout the experiment (Correct answer)
- The outcome that is measured
- A variable that changes randomly
Correct answer: A factor that is kept constant throughout the experiment
Controlled variables (constants) are factors that are deliberately kept the same throughout an experiment to ensure that any observed changes are due to the independent variable being tested.
Question 70: What is a best practice in Pre-Admission Examination critical thinking?
- A practice used only by large organizations
- The cheapest available approach
- Any practice that is easy to implement
- A method or technique recognized as superior based on evidence and expert consensus (Correct answer)
Correct answer: A method or technique recognized as superior based on evidence and expert consensus
Best practices are methods, techniques, or approaches that are recognized through evidence, research, and expert consensus as producing superior results and are recommended for adoption.
Question 71: If a car travels 150 miles in 3 hours, what is its average speed?
- 50 mph (Correct answer)
- 40 mph
- 60 mph
- 30 mph
Correct answer: 50 mph
Speed = distance ÷ time = 150 ÷ 3 = 50 mph.
Question 72: During inhalation, what happens to the diaphragm?
- It relaxes and moves upward
- It contracts and moves downward (Correct answer)
- It moves laterally
- It remains stationary
Correct answer: It contracts and moves downward
During inhalation, the diaphragm contracts and flattens downward, increasing thoracic volume and drawing air into the lungs.
Question 73: What is the primary function of the mitochondria in cells relevant to Pre-Admission Examination?
- To produce energy (ATP) through cellular respiration (Correct answer)
- To store genetic information
- To synthesize proteins
- To remove waste products
Correct answer: To produce energy (ATP) through cellular respiration
Mitochondria are the "powerhouses" of the cell, converting nutrients into ATP (adenosine triphosphate) through cellular respiration, providing the energy needed for cellular functions.
Question 74: Which endocrine gland is called the 'master gland' because it regulates other endocrine glands?
- Pituitary gland (Correct answer)
- Pineal gland
- Thyroid gland
- Adrenal gland
Correct answer: Pituitary gland
The pituitary gland secretes hormones that regulate and control the activity of many other endocrine glands throughout the body.
Question 75: Which of the following is exchanged between two or more atoms that undergo ionic bonding?
- Valence electrons (Correct answer)
- Neutrons
- Transitory electrons
- Electrical charges
Correct answer: Valence electrons
Explanation: <br> An ionic bond forms when one atom donates an electron from its outer shell, called a valence electron, to another atom to form two oppositely charged atoms.
Question 76: Administration of the indicated drug will ameliorate the patient's condition. <br><br> Ameliorate means:
- Intensify
- Improve (Correct answer)
- Cure
- Worsen
Correct answer: Improve
Explanation: <br> Improve is a synonym for ameliorate, both of which mean "to make better." Intensify is similar, but this word implies an effort greater in degree or measurement. Worsen is the antonym meaning, "to become worse or less in value." Cure could fit into this sentence, as it means, "to effect recovery from," but does not relate directly to ameliorate.
Question 77: What is a best practice in Pre-Admission Examination word knowledge?
- A practice used only by large organizations
- The cheapest available approach
- A method or technique recognized as superior based on evidence and expert consensus (Correct answer)
- Any practice that is easy to implement
Correct answer: A method or technique recognized as superior based on evidence and expert consensus
Best practices are methods, techniques, or approaches that are recognized through evidence, research, and expert consensus as producing superior results and are recommended for adoption.
Question 78: Which two proteins are primarily responsible for muscle contraction through the sliding filament mechanism?
- Hemoglobin and myoglobin
- Actin and myosin (Correct answer)
- Keratin and fibrin
- Collagen and elastin
Correct answer: Actin and myosin
Muscle contraction occurs as actin and myosin filaments slide past each other, powered by ATP energy, shortening the sarcomere.
Question 79: In Pre-Admission Examination, what does pH measure?
- The acidity or alkalinity of a solution on a scale of 0 to 14 (Correct answer)
- The viscosity of a solution
- The pressure within a container
- The temperature of a liquid
Correct answer: The acidity or alkalinity of a solution on a scale of 0 to 14
pH measures the hydrogen ion concentration in a solution, indicating its acidity (pH < 7), neutrality (pH = 7), or alkalinity (pH > 7) on a scale from 0 to 14.
Question 80: During which phase is the chromosome number reduced from diploid to haploid?
- S phase
- meiosis I (Correct answer)
- mitosis
- interphase
Correct answer: meiosis I
Explanation: <br> During meiosis I, the chromosome number is reduced from diploid to haploid. Interphase is the period of the cell cycle that occurs in between divisions of the cell. In meiosis, the homologous chromosomes in a diploid cell separate, reducing the number of chromosomes in each cell by half. Mitosis is the phase of cell division in which the cell nucleus divides. The S phase is the part of the mitotic cycle in which DNA is synthesized.
Question 81: A sequence is: 100, 91, 82, 73, ___. What comes next?
- 62
- 64 (Correct answer)
- 66
- 63
Correct answer: 64
Each term decreases by 9, so 73 − 9 = 64.
Question 82: According to the passage, approximately what percentage of people with peanut allergies have severe reactions?
- Up to 44%
- Up to 33% (Correct answer)
- Up to 11%
- Up to 22%
Correct answer: Up to 33%
Explanation: <br> The second paragraph of the passage notes that ""up to one-third of people with peanut allergies have severe reactions."" Since one-third is approximately 33%, choice C is correct.
Question 83: In Pre-Admission Examination, if a process has a completion rate of 85% and 340 items were started, how many were completed?
- 255
- 295
- 272
- 289 (Correct answer)
Correct answer: 289
85% of 340 = 0.85 × 340 = 289 items completed.
Question 84: In PAX, what is the most important aspect of applied practice?
- Understanding core principles and their practical applications (Correct answer)
- Focusing solely on theoretical frameworks
- Ignoring established best practices
- Memorizing facts without understanding context
Correct answer: Understanding core principles and their practical applications
The most important aspect is understanding core principles and how they apply in practice, as this enables effective professional performance.
Question 85: What is the term for the bending of light as it passes from one medium to another?
- Diffraction
- Dispersion
- Reflection
- Refraction (Correct answer)
Correct answer: Refraction
Refraction is the bending of light when it passes between media with different densities.
Question 86: A clinic sees 48 patients per day. At this rate, how many patients are seen in a 6-day work week?
- 288 (Correct answer)
- 300
- 272
- 240
Correct answer: 288
48 × 6 = 288 patients.
Question 87: What is the primary objective of word knowledge in Pre-Admission Examination?
- To limit access to the profession
- To ensure competence and proficiency in core word knowledge concepts (Correct answer)
- To replace practical experience entirely
- To generate revenue for testing organizations
Correct answer: To ensure competence and proficiency in core word knowledge concepts
The primary objective of word knowledge knowledge is to ensure practitioners have the competence and proficiency needed to perform effectively and safely in their professional roles.
Question 88: A lever, pulley, and inclined plane are all examples of:
- Thermal machines
- Complex machines
- Electrical machines
- Simple machines (Correct answer)
Correct answer: Simple machines
Levers, pulleys, and inclined planes are classic examples of simple machines that make work easier.
Question 89: What is the primary objective of critical thinking in Pre-Admission Examination?
- To ensure competence and proficiency in core critical thinking concepts (Correct answer)
- To replace practical experience entirely
- To generate revenue for testing organizations
- To limit access to the profession
Correct answer: To ensure competence and proficiency in core critical thinking concepts
The primary objective of critical thinking knowledge is to ensure practitioners have the competence and proficiency needed to perform effectively and safely in their professional roles.
Question 90: What is the value of 3³ + 4²?
- 37
- 43 (Correct answer)
- 91
- 25
Correct answer: 43
3³ = 27 and 4² = 16; 27 + 16 = 43.
Question 91: In Pre-Admission Examination, what is the difference between literal and inferential comprehension?
- Literal is more difficult than inferential
- There is no meaningful difference between them
- Inferential comprehension only applies to fiction
- Literal comprehension involves stated facts; inferential requires drawing conclusions from clues (Correct answer)
Correct answer: Literal comprehension involves stated facts; inferential requires drawing conclusions from clues
Literal comprehension involves understanding explicitly stated information, while inferential comprehension requires readers to draw conclusions, make connections, and interpret meaning beyond what is directly stated.
Question 92: In Pre-Admission Examination, what is homeostasis?
- The process of cell division
- A type of immune response
- The body's ability to maintain a stable internal environment despite external changes (Correct answer)
- A rapid increase in body temperature
Correct answer: The body's ability to maintain a stable internal environment despite external changes
Homeostasis is the process by which biological systems maintain internal stability and balance (temperature, pH, glucose levels, etc.) while adjusting to changing external conditions.
Question 93: What is a controlled variable in an experiment related to Pre-Admission Examination?
- The variable that is intentionally changed
- A factor that is kept constant throughout the experiment (Correct answer)
- The outcome that is measured
- A variable that changes randomly
Correct answer: A factor that is kept constant throughout the experiment
Controlled variables (constants) are factors that are deliberately kept the same throughout an experiment to ensure that any observed changes are due to the independent variable being tested.
Question 94: In Pre-Admission Examination, what role does continuing education play in word knowledge?
- To prevent professionals from advancing in their careers
- To keep professionals current with evolving standards, technologies, and best practices (Correct answer)
- To increase testing frequency for compliance purposes
- To replace initial certification requirements
Correct answer: To keep professionals current with evolving standards, technologies, and best practices
Continuing education ensures professionals stay current with new developments, evolving standards, and emerging best practices in their field, maintaining competence throughout their careers.
Question 95: Which skin layer contains melanocytes that produce the pigment responsible for skin color?
- Epidermis (Correct answer)
- Dermis
- Hypodermis
- Stratum corneum
Correct answer: Epidermis
Melanocytes are located in the basal layer of the epidermis and produce melanin, which gives skin its color and protects against UV radiation.
Question 96: If a patient's temperature drops from 103.4°F to 99.2°F, by how many degrees did it decrease?
- 5.2
- 4.8
- 3.2
- 4.2 (Correct answer)
Correct answer: 4.2
103.4 − 99.2 = 4.2°F.
Question 97: In Pre-Admission Examination, what role does continuing education play in arithmetic?
- To prevent professionals from advancing in their careers
- To keep professionals current with evolving standards, technologies, and best practices (Correct answer)
- To replace initial certification requirements
- To increase testing frequency for compliance purposes
Correct answer: To keep professionals current with evolving standards, technologies, and best practices
Continuing education ensures professionals stay current with new developments, evolving standards, and emerging best practices in their field, maintaining competence throughout their careers.
Question 98: Which level of biological organization represents the most complex in Pre-Admission Examination chemistry basics?
- Tissue
- Ecosystem (Correct answer)
- Organ
- Cell
Correct answer: Ecosystem
The hierarchy from simplest to most complex goes: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.
Question 99: In Pre-Admission Examination, what is the purpose of the scientific method in biology concepts?
- To eliminate the need for observation
- To provide a systematic approach for investigating questions and testing hypotheses (Correct answer)
- To guarantee specific experimental outcomes
- To replace professional judgment entirely
Correct answer: To provide a systematic approach for investigating questions and testing hypotheses
The scientific method provides a structured, systematic approach for asking questions, forming hypotheses, designing experiments, collecting data, and drawing evidence-based conclusions.
Question 100: A Pre-Admission Examination survey collected responses from 600 participants. If 72% responded positively, how many responded positively?
- 450
- 408
- 420
- 432 (Correct answer)
Correct answer: 432
72% of 600 = 0.72 × 600 = 432 positive responses.
Question 101: Which of the following is the SI unit of force?
- Newton (Correct answer)
- Watt
- Pascal
- Joule
Correct answer: Newton
The Newton (N) is the SI unit of force, defined as kg·m/s².
Question 102: In Pre-Admission Examination, a ratio of 3:5 is used to divide 480 units. How many units are in the larger portion?
- 288
- 300 (Correct answer)
- 180
- 320
Correct answer: 300
Total parts = 3 + 5 = 8. Each part = 480 ÷ 8 = 60. Larger portion = 5 × 60 = 300.
Question 103: In Pre-Admission Examination, why is arithmetic knowledge important for professional certification?
- It is important only for entry-level positions
- It has no practical relevance to daily work
- It is only required for administrative purposes
- It demonstrates competence and ensures practitioners meet established standards (Correct answer)
Correct answer: It demonstrates competence and ensures practitioners meet established standards
Professional certification in specific knowledge areas demonstrates that practitioners have met established competency standards, ensuring quality of service and public protection.
Question 104: What is the unit of electrical power?
- Ampere
- Watt (Correct answer)
- Volt
- Ohm
Correct answer: Watt
The Watt (W) is the SI unit of power, equal to one joule per second.
Question 105: What is the primary function of the mitochondria in cells relevant to Pre-Admission Examination?
- To synthesize proteins
- To store genetic information
- To produce energy (ATP) through cellular respiration (Correct answer)
- To remove waste products
Correct answer: To produce energy (ATP) through cellular respiration
Mitochondria are the "powerhouses" of the cell, converting nutrients into ATP (adenosine triphosphate) through cellular respiration, providing the energy needed for cellular functions.
Question 106: Some of the hospital's computer equipment is outmoded. <br><br> Outmoded means:
- Worn-out
- Inoperable
- Refurbished
- Obsolete (Correct answer)
Correct answer: Obsolete
Explanation: <br> Obsolete and outmoded are synonyms, both connoting "having surpassed its time of use or usefulness." Worn-out is related, but this word suggests something is "damaged or weakened through prolonged use." In this context, inoperable describes something "not workable or practical," making it a related word as well. Refurbished means, "restored to good repair," and is a near antonym.
Question 107: What is a best practice in Pre-Admission Examination arithmetic?
- A practice used only by large organizations
- Any practice that is easy to implement
- The cheapest available approach
- A method or technique recognized as superior based on evidence and expert consensus (Correct answer)
Correct answer: A method or technique recognized as superior based on evidence and expert consensus
Best practices are methods, techniques, or approaches that are recognized through evidence, research, and expert consensus as producing superior results and are recommended for adoption.
Question 108: What term describes the total volume of blood pumped by the heart per minute?
- Stroke volume
- Cardiac output (Correct answer)
- Heart rate
- Ejection fraction
Correct answer: Cardiac output
Cardiac output is the volume of blood the heart pumps per minute, calculated as heart rate multiplied by stroke volume.
Question 109: What is the relationship between theory and practice in Pre-Admission Examination word knowledge?
- Theory provides the foundation and framework that guides effective practical application (Correct answer)
- Theory and practice are completely unrelated
- Theory replaces the need for any practical experience
- Practice is only important; theory is unnecessary
Correct answer: Theory provides the foundation and framework that guides effective practical application
Theory and practice are complementary: theoretical knowledge provides the conceptual framework and understanding that guides effective, evidence-based practical application in professional settings.
Question 110: In Pre-Admission Examination, what does pH measure?
- The viscosity of a solution
- The temperature of a liquid
- The pressure within a container
- The acidity or alkalinity of a solution on a scale of 0 to 14 (Correct answer)
Correct answer: The acidity or alkalinity of a solution on a scale of 0 to 14
pH measures the hydrogen ion concentration in a solution, indicating its acidity (pH < 7), neutrality (pH = 7), or alkalinity (pH > 7) on a scale from 0 to 14.
Question 111: What is the primary function of the stomach in digestion?
- Mechanical and chemical digestion of food (Correct answer)
- Bile production for fat emulsification
- Absorption of nutrients into the blood
- Water absorption from digested material
Correct answer: Mechanical and chemical digestion of food
The stomach mechanically churns food and chemically digests it using hydrochloric acid and pepsin, breaking down proteins and creating chyme.
Question 112: Convert 3/8 to a decimal.
- 0.375 (Correct answer)
- 0.325
- 0.425
- 0.275
Correct answer: 0.375
3 ÷ 8 = 0.375.
Question 113: What is the basic structural and functional unit of the kidney called?
- Alveolus
- Glomerulus
- Nephron (Correct answer)
- Collecting tubule
Correct answer: Nephron
The nephron is the basic functional unit of the kidney responsible for filtering blood, reabsorbing needed substances, and producing urine.
Question 114: What happens to the speed of light as it moves from air into glass?
- It stays the same
- It doubles
- It increases
- It decreases (Correct answer)
Correct answer: It decreases
Light slows down when it enters a denser medium like glass.
Question 115: Which approach is most effective for mastering word knowledge in Pre-Admission Examination?
- Studying only immediately before examinations
- Memorizing textbook definitions without understanding
- Combining theoretical study with practical application and regular review (Correct answer)
- Relying solely on on-the-job experience
Correct answer: Combining theoretical study with practical application and regular review
The most effective approach combines theoretical understanding with practical application, reinforced by regular review and assessment, enabling deeper comprehension and long-term retention.
Question 116: Which reading strategy involves making predictions about content before and during reading?
- Anticipatory reading or predictive reading (Correct answer)
- Speed reading without comprehension
- Memorizing text word by word
- Reading only the conclusion
Correct answer: Anticipatory reading or predictive reading
Predictive or anticipatory reading involves forming hypotheses about upcoming content based on titles, headings, prior knowledge, and text structure, which increases engagement and comprehension.
Question 117: What is the mass (in grams) of 1.0 mol oxygen gas?
- 16 g
- 28 g
- 12 g
- 32 g (Correct answer)
Correct answer: 32 g
Explanation: <br> The mass of 1.0 mol oxygen gas is 32 grams. The molar mass of oxygen can be obtained from the periodic table. In most versions of the table, the molar mass of the element is directly beneath the full name of the element. There is a little trick to this question. Oxygen is a diatomic molecule, which means that it always appears in pairs. In order to determine the mass in grams of 1.0 mol of oxygen gas, then, you must double the molar mass. The listed mass is 16, so the correct answer to the problem is 32.
Question 118: Mark's concerned daughter brought him into the emergency room, and it was found that he had feigned a heart attack. <br><br> Feigned means:
- Undergone
- Affected (Correct answer)
- Experienced
- Concealed
Correct answer: Affected
Explanation: <br> Affected is the synonym for feigned because in this instance both words mean, "presenting a false appearance of." Concealed is a somewhat related term signifying that something is "hidden." The other choices fit into the sentence and are synonyms for each other; as verbs, undergone and experienced both mean, "having come to knowledge of something by living through it."
Question 119: A medication dose is 0.5 mg/kg. How many mg should be given to a 60 kg patient?
- 20 mg
- 35 mg
- 30 mg (Correct answer)
- 25 mg
Correct answer: 30 mg
0.5 mg/kg × 60 kg = 30 mg.
Question 120: Which ion is essential for triggering skeletal muscle contraction?
- Calcium (Ca²⁺) (Correct answer)
- Chloride (Cl⁻)
- Potassium (K⁺)
- Sodium (Na⁺)
Correct answer: Calcium (Ca²⁺)
Calcium ions released from the sarcoplasmic reticulum bind to troponin, exposing myosin-binding sites on actin to initiate contraction.
Question 121: In PAX, what is the relationship between standards and applied practice?
- Standards provide the framework and benchmarks that guide professional practice (Correct answer)
- Standards are suggestions that can be freely ignored
- Standards only apply to entry-level professionals
- There is no relationship between standards and practice
Correct answer: Standards provide the framework and benchmarks that guide professional practice
Professional standards establish the framework, benchmarks, and expectations that guide practice, ensuring consistency, quality, and accountability.
Question 122: In Pre-Admission Examination, what does pH measure?
- The viscosity of a solution
- The temperature of a liquid
- The pressure within a container
- The acidity or alkalinity of a solution on a scale of 0 to 14 (Correct answer)
Correct answer: The acidity or alkalinity of a solution on a scale of 0 to 14
pH measures the hydrogen ion concentration in a solution, indicating its acidity (pH < 7), neutrality (pH = 7), or alkalinity (pH > 7) on a scale from 0 to 14.
Question 123: A bag of IV solution holds 1,000 mL and drips at 125 mL/hour. How many hours will it last?
- 9 hours
- 7 hours
- 8 hours (Correct answer)
- 6 hours
Correct answer: 8 hours
1,000 ÷ 125 = 8 hours.
Question 124: Which skill is most critical for success in PAX advanced concepts?
- Analytical thinking and evidence-based decision making (Correct answer)
- Relying on intuition without supporting evidence
- Speed of task completion without quality checks
- Avoiding collaboration with other professionals
Correct answer: Analytical thinking and evidence-based decision making
Analytical thinking and evidence-based decision making are essential for evaluating situations and making informed professional decisions.
Question 125: A room is 12 feet long and 9 feet wide. What is its area in square feet?
- 112
- 108 (Correct answer)
- 96
- 126
Correct answer: 108
Area = length × width = 12 × 9 = 108 sq ft.
Question 126: What role does documentation play in PAX applied practice?
- It replaces the need for verbal communication
- It is only necessary for legal compliance
- It creates accountability, supports communication, and provides a record for future reference (Correct answer)
- Documentation is optional and rarely needed
Correct answer: It creates accountability, supports communication, and provides a record for future reference
Documentation serves multiple critical purposes: creating accountability, supporting team communication, providing historical records, and enabling quality improvement.
Question 127: In Pre-Admission Examination assessment, what is the primary purpose of identifying the main idea of a passage?
- To count the number of paragraphs
- To understand the central message or argument the author is conveying (Correct answer)
- To identify the publication date
- To memorize every detail in the text
Correct answer: To understand the central message or argument the author is conveying
Identifying the main idea helps readers understand the central point or argument of a passage, which is essential for comprehension, critical analysis, and effective communication.
Question 128: Which of the following does the passage NOT state is a sign of anaphylaxis?
- Constriction of airways
- Runny or stuffy nose (Correct answer)
- Shock
- A rapid pulse
Correct answer: Runny or stuffy nose
Explanation: <br> Paragraph two gives examples of symptoms of peanut allergies and, more specifically, examples of symptoms of anaphylaxis. A runny or stuffy nose is given as a symptom of the former, but not of the latter.
Question 129: The accident victim's arm is saturated in blood. <br><br> Saturated means:
- Wet (Correct answer)
- Inundated
- Caked
- Steeped
Correct answer: Wet
Explanation: <br> Wet and saturated are synonyms, both meaning "covered with, containing, or penetrated with liquid." Inundated is a related term in this case meaning, "flooded," but this word can also mean "overwhelmed." Similarly, steeped means, "soaked or immersed in liquid." In this sentence, caked would mean, "forming a crust."
Question 130: The adrenal glands are part of the:
- Endocrine system (Correct answer)
- Respiratory system
- Immune system
- Emphatic system
Correct answer: Endocrine system
Explanation: <br> The adrenal glands are part of the endocrine system. They sit on the kidneys and produce hormones that regulate salt and water balance and influence blood pressure and heart rate.
Question 131: Which blood vessels carry oxygenated blood away from the heart in systemic circulation?
- Capillaries
- Venules
- Arteries (Correct answer)
- Veins
Correct answer: Arteries
Arteries carry oxygenated blood away from the heart to body tissues in systemic circulation.
Question 132: What is the purpose of summarizing a text in Pre-Admission Examination assessment?
- To reorganize the text in reverse order
- To copy the entire text word for word
- To add personal opinions to the original content
- To demonstrate understanding by condensing key points into a brief overview (Correct answer)
Correct answer: To demonstrate understanding by condensing key points into a brief overview
Summarizing demonstrates comprehension by requiring the reader to identify and articulate the most important points of a text in a concise format, showing they understand the essential content.
Question 133: What is the primary objective of arithmetic in Pre-Admission Examination?
- To ensure competence and proficiency in core arithmetic concepts (Correct answer)
- To limit access to the profession
- To replace practical experience entirely
- To generate revenue for testing organizations
Correct answer: To ensure competence and proficiency in core arithmetic concepts
The primary objective of arithmetic knowledge is to ensure practitioners have the competence and proficiency needed to perform effectively and safely in their professional roles.
Question 134: In Pre-Admission Examination, what role does continuing education play in critical thinking?
- To prevent professionals from advancing in their careers
- To keep professionals current with evolving standards, technologies, and best practices (Correct answer)
- To increase testing frequency for compliance purposes
- To replace initial certification requirements
Correct answer: To keep professionals current with evolving standards, technologies, and best practices
Continuing education ensures professionals stay current with new developments, evolving standards, and emerging best practices in their field, maintaining competence throughout their careers.
Question 135: What is the primary function of the kidneys?
- Secreting digestive enzymes
- Producing red blood cells
- Storing bile for digestion
- Filtering blood and producing urine (Correct answer)
Correct answer: Filtering blood and producing urine
The kidneys filter blood to remove waste products, regulate fluid and electrolyte balance, and produce urine for excretion.
Question 136: Gas exchange in the lungs — oxygen entering the blood and carbon dioxide leaving — occurs in which structures?
- Bronchioles
- Alveoli (Correct answer)
- Bronchi
- Trachea
Correct answer: Alveoli
Alveoli are tiny air sacs where oxygen diffuses into the blood and carbon dioxide diffuses out, making them the primary site of gas exchange.
Question 137: A Pre-Admission Examination report shows values of 42, 38, 45, 51, and 34. What is the mean (average)?
- 42 (Correct answer)
- 45
- 40
- 38
Correct answer: 42
Sum = 42 + 38 + 45 + 51 + 34 = 210. Mean = 210 ÷ 5 = 42.
Question 138: What role does documentation play in PAX advanced concepts?
- It replaces the need for verbal communication
- It is only necessary for legal compliance
- It creates accountability, supports communication, and provides a record for future reference (Correct answer)
- Documentation is optional and rarely needed
Correct answer: It creates accountability, supports communication, and provides a record for future reference
Documentation serves multiple critical purposes: creating accountability, supporting team communication, providing historical records, and enabling quality improvement.
Question 139: The sinoatrial (SA) node is the heart's natural pacemaker. Where is it located?
- Left ventricle
- Right atrium (Correct answer)
- Right ventricle
- Left atrium
Correct answer: Right atrium
The SA node is located in the right atrium and generates the electrical impulses that initiate each heartbeat.
NLN PAX Pre-Admission Examination
The NLN PAX (Pre-Admission Examination) is a standardized nursing school entrance exam developed by the National League for Nursing, assessing aptitude in verbal ability, mathematics, and science for prospective nursing program applicants.
Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds