Which of the following electrolytes plays a crucial role in the regulation of muscle and nerve function, and its imbalance can lead to conditions such as hypokalemia or hyperkalemia?

A Sodium
B Potassium ✓
C Calcium
D Magnesium

Explanation

Potassium plays a crucial role in the regulation of muscle and nerve function, and its imbalance can lead to conditions such as hypokalemia or hyperkalemia.

Mnemonic

'P' for Potassium → 'power' for muscles and nerves

Source

Berne and Levy Physiology
Electrolytes and Acid-Base Balance Physiology Potassium Regulation Medium MEDICAL Confidence: high