The nurse is reviewing the laboratory values for a patient. Which of the following would be considered a normal value?
1. sodium 142 mEq/L
2. calcium 8.0 mg/dL
3. potassium 5.5 mEq/L
4. phosphate 1.2 mEq/L
1
Rationale: The normal range for serum sodium is between 135 to 145 mEq/L. A serum sodium of 142 mEq/L is within the normal range. The normal range for serum calcium is 8.5 to 10 mg/dL. The value of 8.0 mg/dL is low. The normal range for potassium is 3.5 to 5.0 mEq/L. The value of 5.5 mEq/L is high. The normal range for serum phosphate is 1.7 to 2.6 mEq/L. The value of 1.2 mEq/L is low.
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