NCLEX-PN
Nclex Exam Cram Practice Questions
1. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?
- A. serotonin
- B. cortisol
- C. alcohol
- D. narcotics
Correct answer: A
Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.
2. A syringe pump is a type of electronic infusion pump used to infuse fluids or medications directly from a syringe. This device is commonly used for:
- A. solutions administered in obstetrics.
- B. dilute antibiotics.
- C. large volumes of IV solutions.
- D. the neonatal and pediatric populations.
Correct answer: D
Rationale: The correct answer is 'the neonatal and pediatric populations.' Syringe pumps are commonly used in neonatal and pediatric populations because they allow for precise infusion of small volumes of medications or fluids at controlled rates. This is crucial for ensuring safety and accuracy in these delicate populations. Choice A is incorrect because syringe pumps are not limited to obstetrics; they are used in various healthcare settings. Choices B and C are incorrect because syringe pumps are not typically used for dilute antibiotics or large volumes of IV solutions. Instead, they are preferred for delivering small volumes accurately, making them ideal for neonatal and pediatric care.
3. A case management clinical pathway for congestive heart failure might include all of the following except:
- A. physician follow-up appointments with transportation
- B. client education regarding medication use
- C. a nutritional consult for diet review and accommodation
- D. insurance review for reimbursement
Correct answer: D
Rationale: In a case management clinical pathway for congestive heart failure, the focus is on providing medical care and support to the patient. Choices A, B, and C are integral parts of managing congestive heart failure. Physician follow-up appointments with transportation ensure continuity of care, client education about medication use is crucial for adherence, and a nutritional consult helps in managing the patient's diet. However, insurance review for reimbursement is not typically part of the clinical pathway as it pertains to financial aspects and is usually handled by billing departments or external agencies. Therefore, the correct answer is 'insurance review for reimbursement.'
4. Which of the following statements by a client indicates adequate understanding of preparation for a lipoprotein fractionation test?
- A. "I cannot eat or drink after midnight."?
- B. "I cannot eat for 12 hours before the test."?
- C. "I need to limit my fluid intake."?
- D. "I need to ingest a lipid solution."?
Correct answer: B
Rationale: The correct statement regarding preparation for a lipoprotein fractionation test is that the client cannot eat for 12 hours before the test. It is important to note that the client can drink an unrestricted amount of water. Limiting fluid intake is not necessary for this test. There is no need for the client to ingest a lipid solution as part of the preparation. Therefore, the other choices are incorrect.
5. Which of the following isoenzymes is elevated in a client who has had a myocardial infarction?
- A. CPK-BB
- B. CPK-MM
- C. CPK-MB
- D. CPK-MI
Correct answer: C
Rationale: CPK-MB is the correct answer as it is elevated in clients who have had a myocardial infarction. CPK-BB is elevated in clients with brain damage, and CPK-MM is elevated in clients with skeletal muscle damage. CPK-MI, mentioned in the rationale, does not exist, making it an incorrect choice.
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