Arterial Blood Gas Analysis

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| By Yschmudde
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Yschmudde
Community Contributor
Quizzes Created: 1 | Total Attempts: 3,034
Questions: 5 | Attempts: 3,057

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Arterial Blood Gas Analysis - Quiz

This quiz is designed as a pretest to determine retention of prior knowledge regarding arterial blood gas (ABG) analysis.


Questions and Answers
  • 1. 

    A 54-year-old male with a long history of smoking complains of excessive tiredness and shortness of breath. Lab results reveal decreased pH, increased pCO2, and normal bicarbonate ion. The most likely diagnosis is:

    • A.

      A. respiratory alkalosis

    • B.

      B. metabolic acidosis

    • C.

      C. respiratory acidosis

    • D.

      D. metabolic alkalosis

    Correct Answer
    C. C. respiratory acidosis
    Explanation
    These results indicate hypoventilation which results in respiratory acidosis

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  • 2. 

    Metabolic alkalosis may be caused by vomiting. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Due to the losss of gastric acid

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  • 3. 

    In analyzing the results of a patient's blood gas analysis, the nurse will be most concerned about an:

    • A.

      A. Arterial oxygen tension (PO2) of 60 mm Hg

    • B.

      B. Arterial oxygen saturation (SaO2) of 92%

    • C.

      C. Arterial carbon dioxide (PCO2) of 42 mm Hg

    • D.

      D. Arterial bicarbonate level (HCO3) of 26 mEq/L

    Correct Answer
    A. A. Arterial oxygen tension (PO2) of 60 mm Hg
    Explanation
    The PO2 is an abnormal level and indicates decreasing oxygen available to the cells. This would require administration of oxygen.

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  • 4. 

    A patient is coming to the emergency department with a diagnosis of an opioid overdose. The nurse would anticipate that the patient's PCO2 will be:

    Correct Answer
    Increased
    Explanation
    Opioid overdosage results in hypoventilation and the retention of PCO2

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  • 5. 

    The patient's ABG results indicate metabolic acidosis. Which of the following conditions may have contributed to these results?

    • A.

      A. Nasogastric suctioning

    • B.

      B. Diuretic use

    • C.

      C. Diarrhea

    Correct Answer
    C. C. Diarrhea
    Explanation
    There is a loss of bicarbonate ion with diarrhea causing metabolic acidosis. The other examples would lead to a loss of acid leading to metabolic alkalosis.

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  • Current Version
  • Apr 17, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 19, 2011
    Quiz Created by
    Yschmudde
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