What is the normal range for serum potassium levels?

The normal range for serum potassium levels is correctly identified as 3.5-5.0 mEq/L. This range is crucial for maintaining various physiological functions, including nerve conduction, muscle contraction, and maintaining cellular function. Potassium is vital for cardiovascular health, and levels outside of this normal range can lead to significant health issues, such as arrhythmias or muscle weakness.

Maintaining potassium within this range is essential for proper balance; levels below the lower limit could indicate hypokalemia, while levels above the upper limit might suggest hyperkalemia. These conditions can be caused by various factors including medications, dietary intake, or underlying health conditions, and both require clinical attention to manage effectively.

Understanding the specific normal range of potassium is important for healthcare professionals to assess patient health and make informed decisions regarding diagnoses and treatments.