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
Which classification of drugs is contraindicated for the client with hypertrophic cardiomyopathy?
Correct Answer: A
Rationale: Positive inotropic agents should not be administered owing to their action of increasing myocardial contractility. Increased ventricular contractility would increase outflow tract obstruction in the client with hypertrophic cardiomyopathy. Vasodilators are not typically prescribed but are not contraindicated. Diuretics are used with caution to avoid causing hypovolemia. Antidysrhythmics are typically needed to treat both atrial and ventricular dysrhythmias.
Question 3 of 5
In healthcare settings, nurses must be familiar with primary, secondary, and tertiary levels of care. As a nurse in the community, which of the following interventions might be a primary prevention strategy?
Correct Answer: C
Rationale: Reducing the incidence of disease through education supports primary prevention.
Question 4 of 5
A client is admitted with acute adrenal crisis. During the intake assessment, the nurse can expect to find that the client has:
Correct Answer: A
Rationale: Acute adrenal crisis (Addisonian crisis) causes hypotension due to cortisol and aldosterone deficiency, leading to shock. Pulse is typically rapid, skin is cool, and urination decreases.
Question 5 of 5
A 30-year-old client has a history of several recent traumatic experiences. She presents at the physician's office with a complaint of blindness. Physical exam and diagnostic testing reveal no organic cause. The nurse recognizes this as:
Correct Answer: D
Rationale: Conversion disorder involves sensory or motor symptoms, like blindness, without an organic cause, often linked to psychological stress.