What is the normal range of potassium levels in the blood that is essential for muscle cell activity?

The normal range of potassium levels in the blood crucial for muscle cell activity is 3.5-5.0 mEq/L. Potassium is an essential electrolyte that plays a vital role in various bodily functions, particularly in maintaining proper muscle function and nerve transmission. Within this normal range, potassium helps regulate cardiac and smooth muscle contractions. Levels outside this range can lead to serious health issues, such as muscle weakness, arrhythmias, or even cardiac arrest. Maintaining potassium within this specified range is important for optimal physiological functioning, especially in the context of muscle activity and overall metabolic processes.