Free Pediatric CCRN Ultimate Questions and Answers — Questions and Answers

Question 1: What causes a loud, high-pitched sound during breathing?

Stridor (Correct answer)
Nostril contraction
Lymph
Nasal constraints

Correct answer: Stridor

Stridor is a harsh, high-pitched, musical sound produced during breathing, typically heard on inspiration. It is caused by turbulent airflow through a partially obstructed upper airway, such as the larynx or trachea. Stridor is a significant clinical sign indicating potential airway compromise and requires immediate assessment and intervention.

Question 2: What is breathing difficulty?

An act that prevents needed gas exchange (Correct answer)
The difficulty in breathing
None of the above
The abnormalities of breathing heavily

Correct answer: An act that prevents needed gas exchange

Breathing difficulty, or dyspnea, is the subjective sensation of uncomfortable or labored breathing. Physiologically, it often arises when the body's demand for gas exchange—taking in sufficient oxygen and expelling carbon dioxide—is not adequately met. This can be caused by various underlying conditions that impair the efficiency of the respiratory system, thereby preventing needed gas exchange.

Question 3: What does the air lack in terms of breathing?

Respiratory arrest (Correct answer)
Nasal arrest
All of the above
Cardiac arrest

Correct answer: Respiratory arrest

Respiratory arrest refers to the complete cessation of breathing. When breathing stops, the body can no longer take in oxygen or remove carbon dioxide, leading to a rapid and critical lack of oxygen in the blood and tissues. This condition is life-threatening and, if not promptly reversed, will quickly lead to cardiac arrest and death.

Question 4: Which tissue is not impacted by leukemia?

Liver
Bone marrow
Kidney (Correct answer)
Lymph

Correct answer: Kidney

Leukemia is a cancer of the blood-forming tissues, primarily originating in the bone marrow. While it can spread and affect organs rich in lymphatic tissue, such as the liver, spleen, and lymph nodes, the kidney is not a primary site of leukemia cell proliferation. Although leukemia can indirectly cause kidney damage through complications like tumor lysis syndrome, the kidney itself is not directly impacted as a tissue where leukemia typically originates or extensively infiltrates.

Question 5: What are SIDS?

Special infant death syndromes
Sudden infant death syndrome (Correct answer)
Special infant development
None of the above

Correct answer: Sudden infant death syndrome

SIDS stands for Sudden Infant Death Syndrome. It refers to the sudden, unexpected, and unexplained death of an infant younger than one year of age, typically occurring during sleep. SIDS remains a diagnosis of exclusion after a thorough investigation, including an autopsy, examination of the death scene, and review of the clinical history.

Question 6: Which of these is a sign of leukemia?

Pile
Cough
Anemia infection (Correct answer)
Common cold

Correct answer: Anemia infection

Leukemia is a cancer of the blood-forming cells, leading to an overproduction of abnormal white blood cells in the bone marrow. These abnormal cells crowd out healthy blood cells, resulting in a deficiency of red blood cells (anemia) and functional white blood cells. Consequently, anemia and an increased susceptibility to infections are common and significant clinical signs of leukemia.

Question 7: What does an airway opening (for surgical purposes) entail?

Tracheotomy (Correct answer)
Airpath
Airing
Masking

Correct answer: Tracheotomy

A tracheotomy is a surgical procedure that involves creating an incision in the neck to make an opening directly into the trachea (windpipe). This opening, known as a tracheostomy, is established to bypass an upper airway obstruction, facilitate breathing, or provide a secure airway for long-term mechanical ventilation. It is a critical intervention for managing severe airway issues.

Question 8: A patient who has delirium and receptive aphasia will be enrolled in a clinical trial. How should the nurse act to guarantee that the right kind of informed consent is obtained?

Ensure that the investigator is aware of the patient's condition
Involve the patient's legal guardian in the consent process (Correct answer)
Obtain a copy of the consent form to place in the patient's chart
Inform the institutional review board (IRB) of the potential risk to the patient

Correct answer: Involve the patient's legal guardian in the consent process

Delirium and receptive aphasia significantly impair a patient's cognitive ability to understand information and make informed decisions, meaning they lack decisional capacity. In such cases, obtaining informed consent for a clinical trial requires involving the patient's legally authorized representative, such as a legal guardian or healthcare proxy. This ensures that ethical and legal requirements for consent are met, protecting the patient's rights and well-being.

Question 9: A patient complains of sporadic palpitations that come and go and are accompanied by weakness. The heart rate is 125, the PR interval is reduced, and the upstroke is slurred before each enlarged QRS complex, according to an ECG. It is possible to explain this slurred upstroke (Delta wave) by?

Ventricular pre-excitation (Correct answer)
Atrial pre-excitation
Atrial depolarization
Ventricular repolarization

Correct answer: Ventricular pre-excitation

The ECG findings of a reduced PR interval and a slurred upstroke before an enlarged QRS complex (known as a Delta wave) are classic indicators of ventricular pre-excitation. This condition, often seen in Wolff-Parkinson-White (WPW) syndrome, occurs when an accessory pathway bypasses the AV node, allowing electrical impulses to reach and activate the ventricles prematurely. This early ventricular activation causes the characteristic Delta wave.

Question 10: Which of the following physical examination findings is present in a patient who is undergoing albuterol (Proventil) inhalation therapy for an acute asthma attack?

Coughing and grunting
Wheezing and agitation (Correct answer)
Stridor and bronchospasm
Pleural rub and wheezing

Correct answer: Wheezing and agitation

During an acute asthma attack, bronchospasm and airway inflammation cause narrowing of the airways, leading to the characteristic high-pitched whistling sound known as wheezing. Patients experiencing respiratory distress may also exhibit agitation due to hypoxia or as a side effect of beta-agonist medications like albuterol. Therefore, wheezing and agitation are common physical examination findings in a patient undergoing albuterol therapy for an acute asthma attack.

Question 11: Which of the following observations supports the assertion that a 6-month-old has brain death?

Eyes deviate toward the right when ice water is injected into the ears.
Radionuclide scan shows cerebral arterial blood flow into the brain stem.
Low-voltage amplitude observed on electroencephalogram (EEG)
Absence of spontaneous breathing when PaCO2 goes above 60 mmHg (Correct answer)

Correct answer: Absence of spontaneous breathing when PaCO2 goes above 60 mmHg

The absence of spontaneous breathing when the PaCO2 rises above 60 mmHg is a critical component of the apnea test, which is used to determine brain death. This finding indicates a complete and irreversible loss of brainstem function, as the brainstem is responsible for initiating respiration in response to elevated carbon dioxide levels. It is a key criterion for confirming brain death.

Question 12: Esophageal varices that are bleeding may be treated acutely by?

Administration of octreotide (Sandostatin) (Correct answer)
Placement of a central venous line for hyperalimentation (TPN)
Placement of a large NGT to low intermittent suction
Immediate surgical intervention

Correct answer: Administration of octreotide (Sandostatin)

Acute bleeding from esophageal varices is a life-threatening emergency. Octreotide (Sandostatin) is a somatostatin analog that causes splanchnic vasoconstriction, which reduces blood flow to the portal system and subsequently lowers pressure within the esophageal varices. This pharmacological action helps to control and stop the acute variceal bleeding, making it a primary intervention in the immediate management of this condition.

Question 13: A little child with colitis is admitted. The patient experiences respiratory discomfort, abdominal distention, and capillary refill times longer than four seconds eight hours after being admitted. The nurse should have what following suspicions?

Bowel Perforation (Correct answer)
Intussusception
Splenic Rupture
Malrotation with Volvulus

Correct answer: Bowel Perforation

A child with colitis experiencing respiratory discomfort, abdominal distention, and prolonged capillary refill times (indicating poor perfusion and potential shock) suggests a severe, acute abdominal complication. Bowel perforation is a life-threatening emergency where a hole in the intestinal wall leads to the leakage of contents into the abdominal cavity, causing peritonitis, sepsis, and potentially septic shock. These signs are highly indicative of such a critical event.

Question 14: Clinical indicators seen in a kid who has been given the diagnosis of failure to thrive include what?

No interest in surroundings
Distress when held of left alone
Avoidance of eye contact and delayed motor development (Correct answer)
Excessive crying and delayed language development

Correct answer: Avoidance of eye contact and delayed motor development

Mr. Jackson was already admitted as an inpatient, and his personal doctor visits him the *day after* admission for a checkup. This scenario describes subsequent hospital care, which refers to services provided by a physician to a patient who is already admitted to the hospital. Initial hospital care codes (99221-99223) are for the first day of admission, while observation care and outpatient services are for different settings.

Question 15: Which of the subsequent interventions would be most beneficial in helping to manage a child who needs PEEP of 14 cm water?

Placement of a thoracostomy tube
High-frequency oscillatory ventilation (HFOV) (Correct answer)
Extracorporeal membrane oxygenation (ECMO)
Placement of a pulmonary artery catheter

Correct answer: High-frequency oscillatory ventilation (HFOV)

A PEEP of 14 cm water indicates severe lung disease and significant challenges with oxygenation and ventilation. High-frequency oscillatory ventilation (HFOV) is a specialized mode of mechanical ventilation often used in pediatric patients with severe acute respiratory distress syndrome (ARDS) or other severe lung conditions. HFOV delivers very small tidal volumes at very high frequencies, which can provide better oxygenation and CO2 removal while minimizing lung injury, especially when conventional ventilation with high PEEP is insufficient or causing barotrauma.

Question 16: A one-month-old baby who has been underweight, frequently throwing up, and irritable since birth presents. The mother claims that she had another baby with the same symptoms who passed away at the age of two months. Which further exam result would make the nurse think there might be a metabolic inborn error?

Microglossia
Musty Urine Odor (Correct answer)
Micrognathia
Petite Facial Features

Correct answer: Musty Urine Odor

The combination of underweight, frequent vomiting, irritability, and a family history of similar infant death strongly suggests an inborn error of metabolism. A 'musty urine odor' is a classic and distinctive clinical sign of Phenylketonuria (PKU), an inherited metabolic disorder. In PKU, the body cannot properly metabolize the amino acid phenylalanine, leading to its accumulation and characteristic odor, and if untreated, severe developmental issues.

Free Pediatric CCRN Ultimate Questions and Answers

What causes a loud, high-pitched sound during breathing?