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Arterial Blood Gas Interpretation for NCLEX (40 Questions)
By Gil Wayne, BSN, R.N. -
Last Updated on January 8, 2021

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Let us help you review the concepts behind arterial blood gas interpretation for the NCLEX with these acid-base balance practice questions.

Arterial Blood Gas Interpretation Practice Quiz
In this section are the practice problems and questions for arterial blood gas interpretation. This nursing test bank set includes 40 questions divided into two parts. Includes topics are: arterial blood gas interpretation, acid-base balance and imbalances, respiratory acidosis and alkalosis, and metabolic acidosis and alkalosis.

Quizzes included in this ABG nursing test bank are:

Part 1: Arterial Blood Gas Interpretation Practice Quiz (20 Items)
Part 2: Arterial Blood Gas Interpretation Practice Quiz (20 Items)
Guidelines

Read and understand each question before choosing the best answer.
Since this is a review, answers and rationales are shown after you click on the "Check" button.
There is no time limit, answer the questions at your own pace.
Once all questions are answered, you'll be prompted to click the "Quiz Summary" button where you'll be shown the questions you've answered or placed under "Review". Click on the "Finish Quiz" button to show your rating.
After the quiz, please make sure to read the questions and rationales again by click on the "View Questions" button.
Comment us your thoughts, scores, ratings, and questions about the quiz in the comments section below!
2. Arterial Blood Gas Interpretation Practice Quiz (Part 2: 20 Items)
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Arterial Blood Gas Interpretation Practice Quiz (Part 2: 20 Items)
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Question 16 of 20
16. Question
Match the acid-base status of the following blood samples to the disorders in the given choices. (PaCO2 values are in mm Hg and bicarbonate values in mmol/l).

pH 7.64, PaCO2 25, HCO3- 19

A. Respiratory Acidosis, Uncompensated
B. Respiratory Alkalosis, Partially Compensated
C. Respiratory Alkalosis, Uncompensated
D. Metabolic Alkalosis, Partially Compensated
Correct
Correct Answer: B. Respiratory Alkalosis, Partially Compensated

Based on the given ABG values, pH is 7.64. For pH, the normal range is 7.35 to 7.45. Any blood pH above 7.45 (7.46, 7.47, 7.48, and so on...) is ALKALOSIS.
PaCO2 is 25. The normal range for PaCO2 is from 35 to 45. If PaCO2 is below 35, it is alkalosis. Based on the given ABG values, PaCO2 is below 35, so it is considered ALKALOSIS.
HCO3- is 19. The normal range for HCO3 is from 22 to 26. If HCO3 is below 22, it is acidosis. Based on the given ABG values, HCO3 is below 22, so it is considered ACIDOSIS.
For these ABG values, pH is ALKALOSIS and lines up with PaCO2 which is RESPIRATORY. Therefore, this group of ABG values is considered RESPIRATORY ALKALOSIS.
Lastly, it is PARTIALLY COMPENSATED because all three (3) values are abnormal. It is considered partially compensated if all three (3) values are abnormal.