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Localize the cause of potassium disorders. Updated 2026-08.
Localize the cause of potassium disorders
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For education and screening only — not a substitute for professional medical assessment. Results should be interpreted by your healthcare provider.
Kidneys are losing potassium — diuretics, mineralocorticoid excess (Conn's, Cushing's), or tubular disorders (RTA, Gitelman/Bartter). High urine K (>30-40 mEq/L) corroborates.
Kidneys are retaining potassium appropriately — loss is gastrointestinal (diarrhea, vomiting) or dietary.
Kidneys failing to excrete potassium — advanced CKD, ACEi/ARB, potassium-sparing diuretics, hypoaldosteronism, or type 4 RTA. Urgent review.
Kidneys are excreting potassium appropriately — hyperkalemia is from redistribution (acidosis, tumor lysis) or excessive intake.
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This content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.