Which laboratory result should alert the nurse to a potential problem? A) Na⁺ = 137 mEq/L B) K⁺ = 5.2 mEq/L C) Ca²⁺ = 9.2 mg/dL D) Mg²⁺ = 1.8 mg/dL

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The normal range for potassium (K) levels in the blood is typically between 3.5 and 5.0 mEq/L. A level of 5.2 mEq/L is slightly elevated, which could indicate hyperkalemia, a condition that can lead to serious cardiac problems if not addressed.

Which Laboratory Result Should Alert the Nurse to a Potential