Wednesday, June 8, 2011

NCLEX Exam Practice Question of the Week - 06/08/11

Elsevier NCLEX Exam Review

Question: A practitioner orders additional diagnostic studies to assess a client's acid-base status. The laboratory value that indicates metabolic acidosis is:

1. Urine pH of 8.4
2. Gastric content pH of 6.0
3. Venous serum pH of 7.28
4. Arterial plasma pH of 7.40


Answer: 3

Rationale: The expected range of venous pH is 7.31 to 7.41; any condition that decreases bicarbonate anion concentration in extracellular fluid results in metabolic acidosis. Options 1 and 2 are not accurate assessments for metabolic acidosis. Option 4 is within the expected range.


This week’s NCLEX exam practice question came from:
Nugent: Mosby's Review Questions for the NCLEX-RN Exam, 7th edition, Chapter 2, pg 37, question 356

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