Which is a common symptom of hypokalemia?

Which is a common symptom of hypokalemia?

• A. Hypertension
• B. Polyuria
• C. Shortness of Breath
• D. Muscle Cramps

Answer: (D)

Potassium is essential for normal muscle and nerve excitability. When potassium levels fall, cells become more hyperpolarized, making it harder to generate and propagate muscle action potentials. This disrupts contraction and can lead to painful, involuntary muscle activity and a sense of muscle weakness, which commonly presents as cramps. Among the choices, muscle cramps are the most characteristic symptom of low potassium. Hypertension isn’t a direct or typical symptom of hypokalemia. Shortness of breath can occur if respiratory muscles weaken in severe cases, but it’s not as common as cramps. Polyuria can be seen with hypokalemia in some contexts, but cramps and weakness are the classic, more frequent manifestations.

Potassium is essential for normal muscle and nerve excitability. When potassium levels fall, cells become more hyperpolarized, making it harder to generate and propagate muscle action potentials. This disrupts contraction and can lead to painful, involuntary muscle activity and a sense of muscle weakness, which commonly presents as cramps. Among the choices, muscle cramps are the most characteristic symptom of low potassium.

Hypertension isn’t a direct or typical symptom of hypokalemia. Shortness of breath can occur if respiratory muscles weaken in severe cases, but it’s not as common as cramps. Polyuria can be seen with hypokalemia in some contexts, but cramps and weakness are the classic, more frequent manifestations.