NCLEX-RN
NCLEX-RN Exam Practice Questions
Extract:
Question 1 of 5
The nurse is preparing to administer a dose of nitroglycerin sublingual to a client with chest pain. Which instruction should be given to the client?
Correct Answer: B
Rationale: Nitroglycerin sublingual tablets are placed under the tongue to dissolve, allowing rapid absorption to relieve angina. Swallowing, chewing, or taking with milk reduces effectiveness or delays onset.
Question 2 of 5
A nasogastric (NG) tube inserted preoperatively is attached to low, intermittent suctions. A client with an NG tube exhibits these symptoms: He is restless; serum electrolytes are Na 138, K 4.0, blood pH 7.53. This client is most likely experiencing:
Correct Answer: D
Rationale: NG tube suction removes acids, leading to metabolic alkalosis, as indicated by the elevated pH (7.53).
Question 3 of 5
The nurse has been asked to present a lecture on the prevention of West Nile virus in the community setting. Which does the nurse include in the teaching plan?
Correct Answer: A
Rationale: West Nile virus is transmitted by mosquitoes. Wearing protective clothing outside reduces exposure. Midday avoidance (
B) is less effective, DEET repellant (
C) is recommended, and the virus affects all ages, not just under 18 (
D).
Question 4 of 5
A child is to receive atropine 0.15 mg (1/400 g) as part of his preoperative medication. A vial containing atropine 0.4 mg (1/150 g)/mL is on hand. How much atropine should be given?
Correct Answer: B
Rationale: The answer is correct. 0.4 mg = 1 mL : 0.15 mg = x mL, 0.4x = 0.15, x = 0.15 / 0.4, x = 0.375 or 0.38 mL. Sufficient information is provided to determine the amount of atropine to administer. The amount of atropine available and the amount of atropine ordered is required to determine the amount of atropine to be given.
Question 5 of 5
The primary reason that an increase in heart rate (100 bpm) detrimental to the client with a myocardial infarction (MI) is that:
Correct Answer: D
Rationale: Decreased stroke volume and blood pressure will occur secondary to decreased diastolic filling. Tachycardia primarily decreases diastole; systolic time changes very little. Contractility decreases owing to the decreased filling time and decreased time for fiber lengthening. Decreased O2 supply due to decreased time for filling of the coronary arteries increases ischemia and infarct size. Tachycardia primarily robs the heart of diastolic time, which is the primary time for coronary artery filling.