The Urea/Creatinine ratio blood test is used to diagnose acute or chronic renal (kidney) disease or damage. It may also be used to determine gastrointestinal bleeding or trauma. Urea and creatinine are both filtered in the kidneys and excreted in urine.

SPECIMEN: 2 mL (1 mL min.) serum from 1 SST. Ship refrigerated or frozen.

STABILITY: Room: 8 hrs; Refrigerated: 3 weeks; Frozen: 4 weeks

REPORT: Daily

PRE-TEST INFORMATION: No special preparation required.

USAGE: Urea is the end product of protein metabolism. It reflects on the functioning of the kidney in the body. Elevated levels are seen in pre-renal azotemia, renal disease, post-renal disease and reduced glomerular perfusion due to shock, dehydration, diarrhea etc. Decreased levels are seen in malnutrition, overhydration, liver disease etc.