Serum sodium is 120 mmol/L and glucose is 475 mg/dL. Using the correction of 1.6 mmol/L of sodium for each 100 mg/dL of glucose above 100, what is the corrected sodium?
Answer and explanation
Correct answer: C. 126 mmol/L
- Step 1: The excess glucose is 475 - 100 = 375 mg/dL.
- Step 2: Correction = 1.6 x 3.75 = 6, so corrected sodium = 126 mmol/L.
Answer
126 mmol/L.
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