ALT (GPT)

General Information

Lab Name

ALT (GPT)

Lab Code

ALT

Epic Name

ALT

Description

If ordered with Aspartate Aminotransferase see: ALST

Synonyms

Alanine Aminotransferase, SGPT

Interpretation

Method

Spectrophotometric

Reference Range

Units: U/L

Female Male
AgeRangeAgeRange
0-7-33 0-49y10-64
NoneNone 50y-10-48

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

Serum/plasma should be separated from red cells within 2 hours. Refrigerate.

Hemolysis unacceptable.

Quantity

requested: 1 mL serum/plasma
minimum: 0.5 mL serum/plasma

Processing

Refrigerate serum/plasma


Unacceptable: Hemolysis


Note: If ordered with Aspartate Aminotransferase see: ALST

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

84460

LOINC

1742-6

Interfaced Order Code

UOW3842

Interfaced Result Code

UOW3842