Transtubular Potassium Gradient (TTKG)
Transtubular Potassium Gradient (TTKG) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
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What this is
Transtubular Potassium Gradient (TTKG) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Transtubular Potassium Gradient (TTKG) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Halperin ML, Kamel KS. Kidney Int. 1998;53(5):1313-1327. TTKG = (urine K / plasma K) / (urine osm / plasma osm); interpretable only when urine osm > plasma osm and urine Na > 25.
Worked example: TTKG 6.4 (hypokalemia with renal potassium wasting).
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