The nurse is caring for a diabetic patient in renal failure who is in metabolic acidosis. Which laboratory findings are consistent with metabolic acidosis?

pH 7.35, PaCO2 40 mm Hg, HCO3-25 mEq/L

pH 7.32, PaCO2 47 mm Hg. HCO3-23 mEq/L

pH 7.3, PaCO2 36 mm Hg. HCO3- 19 mEq/L

pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L

Answer and Explanation

The Correct Answer is C

A.   pH 7.35, PaCO2 40 mm Hg, HCO3-25 mEq/L: This is within normal ranges and does not indicate acidosis.
B.   pH 7.32, PaCO2 47 mm Hg. HCO3-23 mEq/L: This indicates respiratory acidosis, not metabolic.
C.   pH 7.3, PaCO2 36 mm Hg. HCO3- 19 mEq/L: This indicates metabolic acidosis. The pH is low (acidic), and the HCO3- (bicarbonate) is decreased. The PaCO2 is within normal limits, indicating the respiratory system is compensating for the metabolic acidosis.
D.   pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L: This indicates alkalosis, not acidosis.

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Correct Answer is B

Explanation

A. Hyperventilation can lead to dizziness and lightheadedness, and it's not a recommended method for preventing atelectasis.
B. This statement indicates understanding of the importance of deep breathing exercises in preventing atelectasis.
C. This statement shows a misunderstanding of atelectasis. Anyone can develop atelectasis, especially after surgery.
D. This statement is incorrect, but it focuses on treatment rather than prevention.

A. Abdominal pain B. Lethargy C. Numbness of fingers D. Dry skin

Correct Answer is B

Explanation

A. Abdominal pain is not a direct manifestation of respiratory acidosis. However, it may be associated with other conditions or complications but is not a primary indicator of respiratory acidosis.
B. Lethargy or drowsiness is a common symptom of respiratory acidosis. The increased CO₂ levels lead to an acidic environment that can affect brain function, resulting in decreased alertness, confusion, or drowsiness.
C. Numbness or tingling of the fingers is more commonly associated with respiratory alkalosis, which is characterized by a decreased level of CO₂ and increased blood pH. This condition can cause peripheral numbness and tingling due to altered blood pH affecting nerve function.
D. Dry skin is not a direct manifestation of respiratory acidosis. While it might be a sign of dehydration or other systemic issues, it is not specifically linked to respiratory acidosis.

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The nurse is caring for a diabetic patient in renal failure who is in metabolic acidosis. Which laboratory findings are consistent with metabolic acidosis?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is B

Explanation

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