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Test Code BUN Blood Urea Nitrogen, Serum

Clinical Indications

N/A

Additional Test Codes

Epic Order Name: BUN
Sunquest Order : BUN
Epic Px Code: LAB2105

Specimen Collection Type

Preferred: Mint
Acceptable: Gold

Minimum Collection Volume

1 mL

Reference Range

Newborn: 4 – 12 mg/dL
1Y: 5 – 20 mg/dL
Adult: 7 – 25 mg/Dl

Critical Value

N/A

Interpretation

N/A

Rejection Criteria

Gross Hemolysis

Specimen Availability for Add-on Testing

2 days

Specimen Stability

24 hours room temperature
3 days refrigerated
2 months frozen

Day(s) Performed

Monday through Sunday

Performing Lab- Department

TUKHS-BH-Chemistry

CPT Code

84520

LOINC Code

3094-0

Test Alias

N/A

Additional Information / Notes

Specimens collected in a serum gel tube or lithium heparin gel tube must be centrifuged within 3 hours of collection. Serum gel should clot for 30 minutes prior to being centrifuged.