Which of the following is NOT a sign or symptom of hypokalemia?

Nausea is typically not classified as a direct sign or symptom of hypokalemia. Hypokalemia, which is a condition characterized by low levels of potassium in the blood, primarily manifests through symptoms related to neuromuscular function and cardiac irregularities.

Fatigue, muscle weakness, and cramps are all common manifestations of hypokalemia due to the critical role potassium plays in muscle contraction and nerve impulse transmission. Low potassium levels can hinder normal muscle and nerve function, leading to these symptoms.

Similarly, an irregular pulse can be a significant indicator of hypokalemia because potassium is essential for maintaining normal heart rhythm. Impaired cardiac contractility and arrhythmias can occur in cases of low potassium levels.

While nausea can occur from various causes, it is not a hallmark symptom of hypokalemia and does not directly stem from the physiological effects of low potassium.