Urea/Creatinine Ratio
24 hours
Enzymatic/Colorimetric
Accredited NRL Laboratory
Daily
Evaluates prerenal vs. renal causes of elevated BUN. Useful in kidney function interpretation.
Serum or Plasma
1 mL
Gel-barrier tube or Red-top tube or Green-top (Heparin) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Refrigerated | 7 days |