Urine Urea
24 hours
Enzymatic/Colorimetric
Accredited NRL Laboratory
Daily
Quantifies urea excretion over 24 hours. Assesses nitrogen balance.
24 hour urine
1 mL
Urine without preservative
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 |
Urine Urea
24 hours
Enzymatic/Colorimetric
Accredited NRL Laboratory
Daily
Quantifies urea excretion over 24 hours. Assesses nitrogen balance.
24 hour urine
1 mL
Urine without preservative
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 |