| Laboratory: | Clinical Biochemistry (AUTOMATED) | ||||||||||||||||||
| Test Name: |
UREA - (P)
Test Code:
U
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| Clinical Information: |
Description: Urea is the major end product of protein and amino acid metabolism. It is synthesized by the urea cycle in the liver from ammonia which is produced by amino acid deamination. It is excreted primarily by the kidneys.
Determination of urea is widely used as a screening test for renal function. When used in conjunction with serum creatinine it can aid in the differential diagnosis of pre-renal, renal and post-renal hyperuremia. |
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| Collection Devices: |
Pediatric samples should be collected in LiHep PST microtainer (0.6 mL)
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| Specimen Required: |
Plasma: 2.0 mL
Pediatric Plasma: 0.2 mL
Specimen Stability: Ambient: 7 days Refrigerated: 7 days Frozen: 1 year at -20oC |
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| Referral: |
Serum: 2.0 mL
Adult Volume: 2.0 mL serum or plasma aliquoted
Shipping & Storage: · Refrigerated if off-site testing to be performed within 48 hours of collection · Frozen if testing to be performed after 48 hours See #110-10-05 Serum / Plasma Separation Procedure & Transport |
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| Requisition: | |||||||||||||||||||
| Reference Values: |
Method of Analysis: Enzymatic photometric |
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| Availability: |
Stat or Routine
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