{"id":"urine-potassium-24h","name":"Urine Potassium, 24-Hour","shortName":"Urine Potassium 24h","aliases":["Potassium, 24 Hour Urine","Potassium, 24h Urine","24 Hour Urine Potassium","Potassium, 24 Hour, Urine","Potassium, 24-Hour Urine","Potassium, Urine - per 24h","Potassium, Urine, 24 Hour","Urine Potassium, 24 Hour","24-Hour Urine Potassium","24 Hr Urine Potassium","Urinary Potassium, 24 Hour","Potassium, 24 Hr Urine","K, 24 Hour Urine","Potassium, 24-Hour Urine with Creatinine","Potassium, 24-Hour Urine without Creatinine"],"abbreviations":["U K 24h","UK 24h","24h UK"],"loinc":[{"code":"2829-0","primary":true},{"code":"51720-1","primary":false},{"code":"21476-7","primary":false}],"specimen":"urine-24h","units":[{"ucum":"mmol/(24.h)","display":"mmol/24 h"},{"ucum":"meq/(24.h)","display":"mEq/24 h"},{"ucum":"mg/(24.h)","display":"mg/24 h"}],"referenceRanges":[{"population":"18+","low":25,"high":125,"unit":"mmol/(24.h)","unitDisplay":"mmol/24 h","note":"ARUP prints 25–125 mmol/d and MedlinePlus lists 25–125 mEq (mmol) per day. Quest prints a wider interval, 22–160 mmol/24 h, and Mayo a lower one, 16–105 mmol/24 h for adults (none set under 18). ARUP, Quest and MedlinePlus give no age split, so this range is applied to adults only. The result follows how much potassium you eat, so a spread between labs is expected. Your report's own range comes first.","sources":[{"title":"Potassium, Urine (test 0020849)","url":"https://ltd.aruplab.com/Tests/Pub/0020849","publisher":"ARUP Laboratories"},{"title":"Potassium urine test","url":"https://medlineplus.gov/ency/article/003600.htm","publisher":"MedlinePlus Medical Encyclopedia (NIH National Library of Medicine)"},{"title":"KUR - Potassium, 24 Hour, Urine","url":"https://www.mayocliniclabs.com/test-catalog/overview/614060","publisher":"Mayo Clinic Laboratories"},{"title":"Potassium, 24-Hour Urine without Creatinine (test code 11316)","url":"https://testdirectory.questdiagnostics.com/test/test-detail/11316/potassium-24-hour-urine-without-creatinine?cc=MASTER","publisher":"Quest Diagnostics"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The total potassium that left your body in urine over 24 hours, which mostly follows how much potassium you eat.","url":"https://bloodtesttracker.com/markers/urine-potassium-24h","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}