What is indicated by a potassium level less than 3.5?

A potassium level less than 3.5 indicates hypokalemia, which refers to a deficiency of potassium in the bloodstream. Potassium is a crucial electrolyte that plays a vital role in various physiological processes, including maintaining normal heart function, muscle contraction, and nerve transmission. When potassium levels fall below this threshold, it can lead to a range of symptoms, including muscle weakness, fatigue, and arrhythmias.

Hypokalemia can result from various factors, such as excessive losses due to vomiting, diarrhea, diuretic use, or certain medical conditions like hyperaldosteronism. Recognizing hypokalemia is important for providing appropriate management, which may include potassium supplementation or addressing the underlying cause of the potassium loss. Overall, monitoring electrolyte levels is a key component of patient care in acute and chronic settings.