Urine volume; 24-hour urine collection
The normal range is 800 to 2000 milliliters per day (with a normal fluid intake of about 2 liters per day).
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
Disorders that cause reduced urine volume include dehydration, inadequate fluid intake, or renal insufficiency or failure.
Some of the conditions that cause increased urine volume include:
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