Blood potassium below ~3.5 mEq/L - less common than hyperkalemia in CKD but dangerous, causing muscle weakness and arrhythmias.
Hypokalemia in CKD usually comes from diuretics (especially thiazides and loop diuretics), gastrointestinal losses, poor intake, or redistribution (alkalosis, insulin). It matters in kidney disease because it can cause muscle cramps, weakness, rhabdomyolysis, and dangerous arrhythmias - and because rapid potassium shifts during dialysis are risky. Correcting it safely requires knowing the cause: oral or IV potassium replacement with monitoring, reducing culprit diuretics, and treating the underlying trigger. The TTKG can help distinguish renal from non-renal potassium loss.
High potassium in the blood — a common and potentially dangerous complication of CKD, especially with ACEi/ARB therapy — causing heart rhythm disturbances at severe levels.
A medication that binds potassium in the gut to lower blood potassium — allowing patients with CKD to stay on protective ACEi/ARB therapy.
A progressive condition characterized by gradual loss of kidney function over months or years, classified into 5 stages based on eGFR.
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