BUN,(Blood Urea Nitrogen)
Order Code: BUN
Test Summary
Urea is the principle waste product of protein catabolism. BUN is most commonly measured in the diagnosis and treatment of certain renal and metabolic diseases.
Aliases
- Blood Urea Nitrogen (Serum or Plasma)
- BUN (Serum or Plasma)
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
1 mL
Instructions
Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. Red top serum unacceptable for testing.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Patient Preparation
N/A
Storage
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 7 days
- Refrigerated = 7 days
- Frozen = 1 year
Limitations
N/A
Other Acceptable Specimens
Plasma from Lithium Heparin (Light Green Top) tube
Unacceptable Specimens
- Hemolysis
- Lipemia
- Incorrect specimen type
- Insufficient sample volume
- Improper storage conditions
- Exceeds specimen stability guidelines
- Contaminated sample
Order Code
BUN
EPIC (Premier) Code
LAB073
Includes
N/A
CPT Code
- 84520
Billing Code
- 300405
CPT Statement
Methodology
Spectrophotometry (SP)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439
2308 Sandridge Drive
Moraine OH, 45439
Department
Chemistry
Reference Range
- 0-6D: 4-15 mg/dL
- 6D-2Y: 5-18 mg/dL
- 2-12Y: 8-21 mg/dL
- >12Y: 3-29 mg/dL
Setup Schedule / Expected Turnaround Time
24/7; Report available: Within 1 day of set up
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
1 mL
Instructions
Barrier tubes (serum separator tubes or plasma separator tubes) are preferred. Red top serum unacceptable for testing.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Patient Preparation
N/A
Storage
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Room Temperature or Refrigerated
Specimen Stability
- Room Temperature = 7 days
- Refrigerated = 7 days
- Frozen = 1 year
Limitations
N/A
Other Acceptable Specimens
Plasma from Lithium Heparin (Light Green Top) tube
Unacceptable Specimens
- Hemolysis
- Lipemia
- Incorrect specimen type
- Insufficient sample volume
- Improper storage conditions
- Exceeds specimen stability guidelines
- Contaminated sample
Result Information
Methodology
Spectrophotometry (SP)
Testing Laboratory
N/A
Reference Range
- 0-6D: 4-15 mg/dL
- 6D-2Y: 5-18 mg/dL
- 2-12Y: 8-21 mg/dL
- >12Y: 3-29 mg/dL
Setup Schedule / Expected Turnaround Time
24/7; Report available: Within 1 day of set up