Urea Nitrogen (Blood)

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General Information

Lab Name
Urea Nitrogen
Lab Code
BUN
Epic Ordering
Urea Nitrogen
Description
Synonyms

Interpretation

Method

Spectrophotometric

Reference Range
Units: mg/dL
Female Male
AgeRangeAgeRange
0-8-21 0-8-21

Effective date: 03/01/2015

Ordering & Collection

Specimen Type
Blood
Collection

HMC and UWMC Onsite Locations

  • Preferred: 4 mL blood in LIME GREEN PST tube
  • Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, RED TOP or GREEN TOP tube
  • Pediatric: 1 Full LIME GREEN MICROTAINER
  • Unacceptable: GRAY TOP

Offsite Clinic or Other Locations

  • Preferred: 4 mL blood in GOLD SST tube
  • Also Acceptable: 4 mL blood in ORANGE RST or LIME GREEN PST, RED TOP or GREEN TOP tube
  • Pediatric: 1 Full LIME GREEN MICROTAINER
  • Unacceptable: GRAY TOP
Handling Instructions
Quantity
requested: 1 mL serum/plasma
minimum: 0.3 mL serum/plasma

Processing

Processing

Refrigerate serum/plasma.

Performance

LIS Dept Code
Chemistry, Automated Panels (CHA)
Performing Location(s)
HMC Chemistry, Automated
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

UW-NW Main Lab
206-668-1344

UW Medical Center – Northwest
1550 N 115th Street, A200
Seattle, WA 98133

UW-MT Chemistry, Automated
206-520-4600

Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195

FHCC Fred Hutch Community Lab, Evergreen Campus
425-441-2640

10240 NE 128th St
Kirkland, WA 98034

FHCC Fred Hutch Alliance Lab
206-606-1088

825 Eastlake Ave, Seattle, WA 98109

Frequency
Daily
Available STAT?
Yes

Billing & Coding

CPT codes
84520
LOINC
3094-0
Interfaced Result Code
UOW3836