NCLEX-RN
NCLEX-RN Exam Practice Questions
Extract:
Question 1 of 5
The physician has ordered an amniocentesis to determine the L/S ratio. The L/S ratio is a reliable indicator of:
Correct Answer: C
Rationale: The lecithin/sphingomyelin (L/S) ratio assesses fetal lung maturity by measuring surfactant levels in amniotic fluid. A ratio of 2:1 or higher indicates mature lungs reducing the risk of respiratory distress syndrome. It does not assess renal function Rh isoimmunization or anatomical abnormalities.
Question 2 of 5
A client with a history of a burn injury is receiving Silvadene (silver sulfadiazine). The nurse should monitor the client for:
Correct Answer: A
Rationale: Silver sulfadiazine can cause neutropenia, requiring monitoring of white blood cell counts. Hyperkalemia, hypoglycemia, and hypertension are not typical side effects.
Question 3 of 5
A nurse is caring for a client with a myocardial infarction. The nurse recognizes that the most common complication in the client following a myocardial infarction is:
Correct Answer: B
Rationale: Cardiac dysrhythmias are the most common complication post-MI due to ischemic damage to the conduction system. Hypertrophy develops later, and hyperkalemia is less common.
Question 4 of 5
A client's admission history reveals complaints of fatigue, chronic sore throat, and enlarged lymph nodes in the axilla and neck.
Correct Answer: A
Rationale: A complete blood count (CB
C) detects abnormal white blood cell counts, supporting a leukemia diagnosis. Chest x-ray (
B), bone marrow aspiration (
C), and CT scan (
D) are confirmatory but not initial tests.
Question 5 of 5
A 55-year-old man has recently been diagnosed with hypertension. His physician orders a low-sodium diet for him. When he asks, 'What does salt have to do with high blood pressure?' the nurse's initial response would be:
Correct Answer: B
Rationale: Excess salt causes fluid retention, increasing blood volume and thus blood pressure.