Creatinine, 24-hr Urine
Fasting Required: No

Specimen: Urine

Lab: Quest Diagnostics

Results: 5-7 Business Days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

Special Instructions: Urine jug to be picked up at lab.

Limitations: Requires accurate 24-hour urine collection.

Description: Creatinine is a waste product from normal muscle use and meat protein in your diet. Healthy kidneys remove creatinine from the blood and then passes it out of your body through urine. This test is used to measures kidney function or to see if treatment for kidney disease is working.