{"id":"urine-volume-24h","name":"Urine Volume, 24-Hour","shortName":"24h Urine Volume","aliases":["Total Volume, 24 Hour Urine","24 Hour Urine Volume","Volume, 24H Urine","Urine Total Volume","Urine Volume, 24 Hour","24-Hour Urine Volume","Volume, 24 HR, U","Urine Output, 24 Hour","Total Urine Volume, 24 Hour","24 hr Urine Volume","Volume (24 hr Urine)"],"abbreviations":[],"loinc":[{"code":"3167-4","primary":true},{"code":"3168-2","primary":false}],"specimen":"urine-24h","units":[{"ucum":"mL/(24.h)","display":"mL/24 h"},{"ucum":"L/(24.h)","display":"L/24 h"}],"referenceRanges":[{"population":"Adults","low":800,"high":2000,"unit":"mL/(24.h)","unitDisplay":"mL/24 h","note":"MedlinePlus (NIH) lists 800–2,000 mL per day with a normal fluid intake of about 2 liters a day. The number mostly follows how much you drink, so it is a usual range, not a health target. Mayo's kidney-stone profile asks for the volume but prints no interval for it. For people who form kidney stones, the Brazilian Society of Nephrology guideline lists more than 2.0–2.5 L/day as the target and treats under 1.5 L/day as a level to watch.","sources":[{"title":"Urine 24-hour volume","url":"https://medlineplus.gov/ency/article/003425.htm","publisher":"MedlinePlus Medical Encyclopedia (NIH National Library of Medicine)"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The total amount of urine you pass in 24 hours. It reflects how much fluid you take in and lose, and it is needed to read other 24-hour urine tests.","url":"https://bloodtesttracker.com/markers/urine-volume-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."}