What is the normal range for potassium levels in adults?

The normal range for potassium levels in adults is accurately represented by the choice indicating 3.5 to 5.0 mEq/L. Potassium is a crucial electrolyte in the body, essential for various physiological functions, including nerve conduction, muscle contraction, and maintaining a stable heart rhythm. Levels outside the normal range can lead to significant health issues; hypokalemia (low potassium) can cause muscle weakness and arrhythmias, while hyperkalemia (high potassium) can lead to serious cardiac complications and requires immediate corrective measures.

Understanding potassium levels and their implications is critical for managing patients, especially in acute care settings where electrolyte imbalances can quickly become life-threatening. Thus, recognizing the normal range helps healthcare professionals in monitoring and addressing potential disruptions effectively.