A nurse is reviewing a client's admission laboratory findings that indicate the client has hyponatremia. Which of the following laboratory findings should the nurse also expect to be below the expected reference range?

Chloride

Calcium

Potassium

Magnesium

Answer and Explanation

The Correct Answer is A

Rationale:
A. Chloride levels often decrease along with sodium, as they are closely related electrolytes. Hyponatremia is commonly accompanied by hypochloremia.
B. Calcium levels are regulated independently of sodium and are not typically affected by hyponatremia.
C. Potassium may be normal, low, or even high depending on the underlying cause; it is not consistently low with hyponatremia.
D. Magnesium levels do not typically mirror sodium levels and are regulated separately.

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Correct Answer is C

Explanation

Rationale:
A. Normal ABG would have pH between 7.35–7.45, PaCO₂ between 35–45 mmHg, and HCO₃⁻ between 22–26 mEq/L. This ABG is not fully normal.
B. Metabolic acidosis is characterized by low pH and low HCO₃⁻, which is not the case here.
C. Metabolic alkalosis shows elevated HCO₃⁻ (30 mEq/L) and a near-normal but slightly alkalotic pH (7.44). The elevated PaCO₂ (48 mmHg) suggests partial respiratory compensation.
D. Respiratory acidosis would have a low pH and high PaCO₂, which doesn't match this ABG.

A. Introduce a regular diet B. Rehydrate. C. Maintain fluid therapy. D. Assess fluid balance.

Correct Answer is B

Explanation

Rationale:
A. Introducing a regular diet is important but not the immediate priority in severe diarrhea.
B. Rehydration is the most critical initial step to prevent or treat dehydration and shock.
C. Maintaining fluid therapy is important after rehydration is initiated but not the first action.
D. Assessing fluid balance is necessary but secondary to initiating rehydration.

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A nurse is reviewing a client's admission laboratory findings that indicate the client has hyponatremia. Which of the following laboratory findings should the nurse also expect to be below the expected reference range?

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Naxlex Comprehensive Predictor Exams

Interpret the following ABG: pH 7.44, PaCo2 48mmHg, HCO3 30 Meq/L

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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