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Mint Green Top (Lithium Heparin Gel)
Specimen Requirements
Preferred:
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Minimum Volume: 1.0 mL
Collection Instructions: N/A
Also Acceptable:
Container/Tube: Plain Green Top Tube (Serum)
Specimen Stability
Ambient: 8 hours
Refrigerate: 48 hours
Frozen: aliquot for longer storage
Reference Range
7-25 mg/dl
Methodology
Enzymatic Rate
CPT
84520
Test Alias
Blood Urea Nitrogen