Arterial Blood Gas Analysis

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| By Yschmudde

Yschmudde

Community Contributor

Quizzes Created: 1 | Total Attempts: 3,234

Questions: 5 | Attempts: 3,234 | Updated: Apr 17, 2024

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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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1
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
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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0
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

Arterial Blood Gas Analysis

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:

Metabolic alkalosis may be caused by vomiting.

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

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:

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

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 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: