At what range is potassium typically found to be normal in the bloodstream?

Potassium is an essential electrolyte in the body, playing a crucial role in maintaining normal cell function, muscle contraction, and nerve transmission. The normal range for potassium levels in the bloodstream is typically established to ensure that these physiological processes function properly.

The range of 3.5 to 5.0 mmol/L is widely accepted as the standard reference for serum potassium levels. Values below this range can indicate hypokalemia, which can lead to muscle weakness, arrhythmias, and other health issues. Conversely, values above this range suggest hyperkalemia, which can also result in severe complications, such as cardiac arrest.

Understanding this normal range is important for practical nursing as it helps in assessing patient health and recognizing potential electrolyte imbalances that could impact treatment outcomes.