A nurse is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the nurse expect?
Potassium 3.3 mEq/L.
HCO3- 30 mEq/L.
PacO2 50 mm Hg.
pH 7.45.
The Correct Answer is C
PacO2 50 mm Hg. Choice A rationale:
Potassium levels are not directly related to respiratory acidosis. Potassium levels may be affected in certain conditions, but they are not specific indicators of respiratory acidosis.
Choice B rationale:
HCO3- (bicarbonate) levels may be elevated in metabolic alkalosis, not respiratory acidosis. In respiratory acidosis, the primary abnormality is an increased PacO2, not HCO3-.
Choice C rationale:
The partial pressure of carbon dioxide (PacO2) is a key parameter in diagnosing respiratory acidosis. In this case, a PacO2 of 50 mm Hg suggests hypoventilation and an excess of carbon dioxide in the blood, contributing to acidosis.
Choice D rationale:
The pH level given (pH 7.45) is within the normal range, which contradicts the diagnosis of respiratory acidosis. In respiratory acidosis, the pH would be expected to be below the normal range of 7.35-7.45 due to increased carbon dioxide levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
Choice A rationale:
Romaine lettuce is a good dietary source of magnesium. Since the patient has a low serum magnesium level, suggesting foods rich in magnesium like romaine lettuce can help improve magnesium levels.
Choice B rationale:
Lean red meat is not a good suggestion for a patient with low magnesium levels. While it contains magnesium, it is not as rich in magnesium as some other food choices.
Choice C rationale:
Almonds are a good dietary source of magnesium and can be recommended to the patient with low magnesium levels to help increase their magnesium intake.
Choice D rationale:
White rice is not a significant source of magnesium and may not be helpful in improving the patient's low magnesium levels.
Choice E rationale:
Seafood is a good source of various nutrients but is not particularly rich in magnesium compared to other options like almonds and romaine lettuce. Thus, it may not be the best suggestion for the patient's low magnesium levels.
Correct Answer is D
Explanation
Choice A rationale:
Hypokalemia is not a direct adverse effect of dextrose 10% in water infusion. This solution does not contain potassium, and unless the patient already has low potassium levels or other contributing factors, it would not cause hypokalemia.
Choice B rationale:
Hypercalcemia is unrelated to dextrose 10% in water infusion. The solution does not contain calcium, and it would not lead to an increase in serum calcium levels.
Choice C rationale:
Hypovolemia, or low blood volume, is not typically associated with dextrose 10% in water infusion. However, if administered rapidly in large amounts, it could potentially cause fluid overload leading to hypervolemia.
Choice D rationale:
Hyperglycemia is a possible adverse effect of dextrose 10% in water infusion. The solution contains a high concentration of glucose, which can raise blood sugar levels if the body cannot adequately utilize or regulate the glucose. Regular monitoring of blood glucose levels is essential during such an infusion, especially in patients with diabetes or impaired glucose tolerance.
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