What is the typical potassium (K+) range in mEq/L?

The typical potassium level in the body is crucial for various cellular functions, including muscle contractions and nerve signaling. The normal reference range for potassium (K+) is typically between 3.5 to 4.5 mEq/L in adults. This range reflects the balance necessary for maintaining normal physiological function. Levels below this range may lead to hypokalemia, which can cause weakness, fatigue, and cardiac arrhythmias, while levels above can result in hyperkalemia, which poses serious risks, including cardiac arrest. Therefore, the correct range that indicates normal potassium levels in mEq/L is 3.5-4.5.