What is the definition of hyperkalemia?

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Multiple Choice

What is the definition of hyperkalemia?

Explanation:
Hyperkalemia means there is too much potassium in the blood. Normal serum potassium is about 3.5 to 5.0 mEq/L, and defining hyperkalemia as levels above 5.5 mEq/L is a common clinical convention. This threshold matters because once potassium exceeds 5.5, the risk of dangerous cardiac rhythms increases and it prompts further evaluation and treatment. Levels just above the upper limit of normal (5.0–5.5) may be monitored for persistence, while higher levels (above 5.5) indicate true hyperkalemia that needs prompt management. The other numbers either overcall mild elevations (5.0), describe a more severe or later stage (>6.0), or indicate low potassium (<3.5).

Hyperkalemia means there is too much potassium in the blood. Normal serum potassium is about 3.5 to 5.0 mEq/L, and defining hyperkalemia as levels above 5.5 mEq/L is a common clinical convention. This threshold matters because once potassium exceeds 5.5, the risk of dangerous cardiac rhythms increases and it prompts further evaluation and treatment. Levels just above the upper limit of normal (5.0–5.5) may be monitored for persistence, while higher levels (above 5.5) indicate true hyperkalemia that needs prompt management. The other numbers either overcall mild elevations (5.0), describe a more severe or later stage (>6.0), or indicate low potassium (<3.5).

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