CLINICAL MEDICINE

Detailed explanation-1: -Potassium is the most abundant cation in the intracellular fluid and it plays a vital role in the maintenance of normal cell functions.

Detailed explanation-2: -By far the most important, or main, electrolyte found in intracellular fluid is potassium. As an electrolyte, potassium has a positive charge and is involved in ion-gated channels that open or close in order to allow for the transport of certain substances as needed by different parts of the body.

Detailed explanation-3: -Potassium, a metallic inorganic ion with atomic weight of 39, is the most abundant cation in the body. The vast majority of potassium is in the intracellular compartment with a small amount in the extracellular space.

Detailed explanation-4: -Potassium is the most abundant positively charged ion inside of cells. Ninety percent of potassium exists in intracellular fluid, with about 10 percent in extracellular fluid, and only 1 percent in blood plasma. As with sodium, potassium levels in the blood are strictly regulated.