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Excessive intake of potassium is not a primary cause of hyperkalemia because in the presence of normal kidney function, and the absence of drugs causing alterations in homeostasis, the kidney responds to the rise in the potassium levels by increasing the excretion of potassium into urine.
The kidneys compensate for these losses by retaining sodium in the collecting ducts at the expense of hydrogen ions (sparing sodium/potassium pumps to prevent further loss of potassium), leading to metabolic alkalosis. [5] Congenital chloride diarrhea – rare for being a diarrhea that causes alkalosis instead of acidosis. [6]
This illustration demonstrates the normal kidney physiology, including the Proximal Convoluted Tubule (PCT), Loop of Henle, and Distal Convoluted Tubule (DCT). It also includes illustrations showing where some types of diuretics act, and what they do. Renal physiology (Latin renes, "kidneys") is the study of the physiology of the kidney.
Acute kidney injury (previously known as acute renal failure) – or AKI – usually occurs when the blood supply to the kidneys is suddenly interrupted or when the kidneys become overloaded with toxins. Causes of acute kidney injury include accidents, injuries, or complications from surgeries in which the kidneys are deprived of normal blood ...
Low potassium is caused by increased excretion of potassium, decreased consumption of potassium rich foods, movement of potassium into the cells, or certain endocrine diseases. [3] Excretion is the most common cause of hypokalemia and can be caused by diuretic use, metabolic acidosis , diabetic ketoacidosis , hyperaldosteronism , and renal ...
Potassium: Vital for heart function, potassium helps maintain a regular heartbeat and supports proper muscle contraction and nerve signaling. It also contributes to fluid balance within the body.
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