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)
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2. Arterial Blood Gas Interpretation Practice Quiz (Part 2: 20 Items)
Arterial Blood Gas Interpretation Practice Quiz (Part 2: 20 Items)
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Question 1 of 20
1. Question
In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Low plasma PaCO2
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Question 2 of 20
2. Question
In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: High plasma PaCO2
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Question 3 of 20
3. Question
In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Decreased plasma bicarbonate (HCO3-)
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Question 4 of 20
4. Question
In acid-base balance, the normal plasma PCO2 and bicarbonate levels are disturbed. Match the changes in this parameter with the disorders in the given choices: Increased plasma bicarbonate (HCO3-)
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Question 5 of 20
5. Question
What two organs in the body serve as a compensatory function to maintain acid-base balance?
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Question 6 of 20
6. Question
Arterial blood gas (ABG) measurement will give the information needed to determine if the primary disturbance of acid-base balance is respiratory or metabolic in nature.
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Question 7 of 20
7. Question
The major effect of acidosis is overexcitement of the central nervous system.
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Question 8 of 20
8. Question
Alkalosis is characterized by overexcitement of the nervous system.
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Question 9 of 20
9. Question
The human body functions optimally in a state of homeostasis.
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Question 10 of 20
10. Question
Acids have no hydrogen ions and are able to bind in a solution.
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Question 11 of 20
11. 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 7.57, PaCO2 22, HCO3- 17
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Question 12 of 20
12. 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 7.39, PaCO2 44, HCO3- 26
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Question 13 of 20
13. 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 7.55, PaCO2 25, HCO3- 22
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Question 14 of 20
14. 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 7.17, PaCO2 48, HCO3- 36
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Question 15 of 20
15. 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 7.34, PaCO2 24, HCO3- 20
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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
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Question 17 of 20
17. 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 7.45, PaCO2 50, HCO3- 30
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Question 18 of 20
18. 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 7.6, PaCO2 53, HCO3- 38
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Question 19 of 20
19. 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 7.5, PaCO2 19, HCO3- 22
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Question 20 of 20
20. 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 7.39, PaCO2 59, HCO3- 35
CorrectIncorrect
2. Arterial Blood Gas Interpretation Practice Quiz (Part 2: 20 Items)
Arterial Blood Gas Reviewer
For your reviewer on the concepts behind arterial blood gas (ABGs) and interpretation, please visit:
Recommended Links
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For this nursing test bank, we have included more than 1,000+ NCLEX practice questions covering different nursing topics! We’ve made a significant effort to provide you with the most challenging questions along with insightful rationales for each question to reinforce learning.
Thank you for work done so far. god bless you.
I’ll like you to review this question No:20 under ABGs NCLEX Quiz 2. The correct answer you gave contradicts with the rationale -” For these ABG values, pH is NORMAL but slightly acidic and lines up with PACO2 which is METABOLIC. Therefore, this group of ABG values is considered METABOLIC ALKALOSIS.” Thank you.. pls see below.
20. 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 7.39, PaCO2 59, HCO3- 35
A. Respiratory Acidosis, Uncompensated
B. Metabolic Alkalosis, Uncompensated
C. Respiratory Acidosis, Fully Compensated
D. Metabolic Alkalosis, Partially Compensated
Correct
Correct Answer: C. Respiratory Acidosis, Fully Compensated
Based on the given ABG values, pH is 7.39. For pH, the normal range is 7.35 to 7.45. So it is NORMAL.
PaCO2 is 59. The normal range for PaCO2 is from 35 to 45. If PaCO2 is above 45, it is acidosis. Based on the given ABG values, PaCO2 is above 45, so it is considered ACIDOSIS.
HCO3- is 35. The normal range for HCO3 is from 22 to 26. If HCO3 is above 26, it is alkalosis. Based on the given ABG values, HCO3 is above 26, so it is considered ALKALOSIS.
For these ABG values, pH is NORMAL but slightly acidic and lines up with PACO2 which is METABOLIC. Therefore, this group of ABG values is considered METABOLIC ALKALOSIS.
Lastly, it is FULLY COMPENSATED because pH is normal. It is considered fully compensated if pH is normal.
Thompson.
Agreed, the symptoms also line up with patient being alkalosis as well: irritability and diarrhea. Assuming SaO2 levels are normal, increased respirations would point to alkalosis as well.
I beg to disagree with your analysis.
The answer is correct Respiratory Acidosis with Fully compensated. The pH is within normal limits, the PCO2 is high meaning respiratory aspect is getting acidotic and because the respiratory is getting acidotic the kidney which the HCO3 is compensating well by increasing.
The answer is Respiratory acidosis; fully compensated.
Hi Thompson,
I respectfully disagree with your analysis of the question as well. Since the pH is within normal limits, it is fully compensated, you are correct. The absolute normal for pH is 7.4, so since 7.39 is below the absolute it is still considered acidic. From there, The PaCO2 is elevated above normal range of 35-45, along with HCO3- elevated from the normal range of 22-26. HCO3- is elevated due to renal compensation. We know with respiratory disorders of ABGs, respiratory values go in opposite directions of one another and metabolic values go in the same directions (ROME method). Therefore, this situation is respiratory acidosis.
This is fully compesated Respiratory acidosis because PCO2 is corrected by respiratory system and not metabolism as it does the Kidney to HCO3
i love this material i never understand before
A 73year man has been admitted to the unit with a diagnosis of chronic obstructive pulmonary disease .he states that he has difficulty breathing when walking short distance .he also states that his heart feels like it is racing at the same time .he states that he is tired all the time and while talking to you he is continually wringing his hands and looking out the windows.1.Identify the 4 health problem of the patient.2.formulate the nursing diagnosis
Thompson,
The PaCo2 is high and the pH is normal but slightly acidic because it is on the lower end. Using the ROME method, this would make it respiratory acidosis, fully compensated. I recommend using the ROME method (respiratory opposite metabolic equal).
B. Metabolic Acidosis, Partially Compensated
REASON: NORMAL
pH (ACID 0 10 ALK)
CO2 (ACID 100 0 ALK.)
HCO3 (ACID 0 50 ALK)
Thanks for this topic of ABGs here on NCLEX
I have understood this topic than I did ever in my academic career
Thanks for the lesson I can answer the question correctly
In the Arterial Blood Gas Interpretation Practice Quiz (Part 1: 20 Items), I think the correct answer to Q3. should have been : Respiratory Alkalosis, Partially Compensated. Please revisit and let me know. Thanks for the resources.
The answer is quite in order. Pls disregard comment. Thanks
This ABG’s study with the practice quiz was great and help me understand the difference in acidosis and alkalosis, respiratory versus metabolic and also compensated as well as uncompensated to fully compensated. Thanks for the resources.
The blood Ph is more towards Acidic. the PaCo2 is elevated, which is always an indicator for respiratory acidosis.
the HCO3 is also elevated, but an elevated HCO3 is is also always an indicator for Metabolic Alkalosis.
Since the Ph of the blood is is towards acidity, and the PaCO2 is elevated, the patient is in respiratory acidosis, the HCO3 is also elevated because homeostasis have set in an the body needs to form more alkaines to compensate for the increased acidity. since the Ph of the blood, though towards acidity but still within normal, that means the RESPIRATORY ACIDOSIS IS FULLY COMPENSATED.
This is such a helpful one> thank you so much for sharing this.
Very helpful and informative
Thank you!
This helpful thank you so much for sharing.
The answer is Respiratory Acidosis, Fully compensated. This is because the ph is within normal range and based on the principle of ROME which is Respiratory Opposite Metabolic Equal, the PCO2 of 59 is Acidotic. Therefore, the PCO2 is Opposite to the ph (7.39) meaning that the result is Respiratory Acidosis, Fully compensated.
Really helpful. Thanks
Thanks for the lecture and this quiz. Now I understand ABG better and it will be quite helpful in my practice!