PAX PAX (NLN) 5 — Questions and Answers
Question 1: What is the median of the following data set: 4, 7, 9, 2, 6, 8, 1?
- 6 (Correct answer)
- 7
- 5.3
- 9
Correct answer: 6
Arranged in order: 1, 2, 4, 6, 7, 8, 9 — the middle value (4th of 7) is 6.
Question 2: Which of the following is an example of passive immunity?
- Receiving a flu vaccine
- Recovering from chickenpox
- Receiving maternal antibodies through breast milk (Correct answer)
- Being exposed to a pathogen and producing antibodies
Correct answer: Receiving maternal antibodies through breast milk
Passive immunity involves receiving pre-made antibodies, such as those passed from mother to infant.
Question 3: Read the following: 'The results were inconclusive.' What does 'inconclusive' mean?
- Definitive
- Not leading to a clear result (Correct answer)
- Highly accurate
- Contradictory
Correct answer: Not leading to a clear result
The prefix 'in-' means not, so inconclusive means not conclusive or without a clear outcome.
Question 4: What is the result of 2³ × 2²?
- 2^5 (Correct answer)
- 2^6
- 4^5
- 2^1
Correct answer: 2^5
When multiplying powers with the same base, add the exponents: 2³ × 2² = 2^(3+2) = 2^5.
Question 5: Which of the following correctly describes mitosis?
- Division producing four genetically unique cells
- Division producing two genetically identical daughter cells (Correct answer)
- Division that reduces chromosome number by half
- Division that occurs only in reproductive organs
Correct answer: Division producing two genetically identical daughter cells
Mitosis produces two genetically identical diploid daughter cells used for growth and repair.
Question 6: A nurse must administer 0.5 mg of a drug. The available tablets are 0.25 mg each. How many tablets are needed?
- 1 tablet
- 2 tablets (Correct answer)
- 3 tablets
- 0.5 tablets
Correct answer: 2 tablets
0.5 mg ÷ 0.25 mg per tablet = 2 tablets.
Question 7: Which of the following is NOT a function of the skeletal system?
- Supporting body structure
- Producing red blood cells
- Regulating blood glucose levels (Correct answer)
- Protecting internal organs
Correct answer: Regulating blood glucose levels
Blood glucose regulation is a function of the endocrine system (pancreas), not the skeletal system.
PAX PAX (NLN) 5
What is the median of the following data set: 4, 7, 9, 2, 6, 8, 1?