A client is receiving IV insulin for hyperglycemia. Which laboratory value requires immediate intervention by the nurse?
a. Serum chloride level of 98 mmol/L
b. Serum calcium level of 8.8 mg/dL
c. Serum sodium level of 132 mmol/L
d. Serum potassium level of 2.5 mmol/L
D
Insulin activates the sodium-potassium ATPase pump, increasing the movement of potassium from the extracellular fluid into the intracellular fluid, resulting in hypokalemia. In hyperglyce-mia, hypokalemia can also result from excessive urine loss of potassium. The chloride level is normal. The calcium and sodium levels are slightly low, but this would not be related to hyper-glycemia and insulin administration.
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