Transtubular Potassium Gradient Sponsored Advertising placement Transtubular Potassium Gradient Clinical Decision Tool Calculates the transtubular potassium gradient. Urine Potassium mmol/L Plasma Potassium mmol/L Urine Osmolality mOsm/kg Plasma Osmolality mOsm/kg Calculate Transtubular Potassium Gradient Clear Calculator ☆ Log in to save Save this calculator to your MediCalc account. Log in to save incomplete calculator progress and return later. Log in to save progress Clinical Decision Support Only MediCalc calculators are intended to support qualified healthcare professionals and must not replace professional clinical judgement. Do not enter patient-identifiable information into Saved Progress. Read our Clinical Disclaimer Sponsored Advertising placement