NCLEX-RN
Practice NCLEX RN Test Questions
Extract:
Question 1 of 5
The physician has ordered cultures for cytomegalovirus (CMV). Which statement is true of the collection of cultures for cytomegalovirus?
Correct Answer: D
Rationale: Fresh specimens are critical for accurate CMV culture results, as the virus is labile and degrades quickly.
Question 2 of 5
What is the critical point for PO2 (the 'ICU' point), the percentage point at which there is marked decrease in oxygen saturation? Record your answer using a whole number.
Correct Answer: 90
Rationale: The critical PO2 point is around 90 mmHg, where oxygen saturation drops significantly, often requiring ICU intervention.
Question 3 of 5
A nurse is triaging in the emergency room when a client enters complaining of muscle cramps and a feeling of exhaustion after a running competition. Which of the following would the nurse suspect?
Correct Answer: B
Rationale: Hyponatremia is common in runners due to excessive water intake or sodium loss through sweat, leading to muscle cramps and exhaustion. Hypernatremia, SIADH, or low potassium would present differently.
Question 4 of 5
Which of the following are true statements regarding peripherally inserted central catheter (PICC) lines? Select all that apply.
Correct Answer: A,C,E
Rationale: PICC lines require sterile technique, have a lower infection risk than other central lines, and can be inserted at the bedside. Only specially trained RNs (not any LPN/RN) can insert them, and pneumothorax risk is minimal.
Question 5 of 5
The physician has ordered sublingual nitroglycerin for a client. Which of the following are contraindications for administration of sublingual or buccal medications? Select all that apply.
Correct Answer: C,D
Rationale: Red, irritated mucous membranes (
C) and dehydration (
D) impair sublingual absorption. Edentulous state (
A), mild dementia (
B), and aphasia (E) do not contraindicate sublingual administration.