Pregnancy (HCG), Serum

General Information

Method

Chemiluminescence

Reference Range

Units: mIU/mL

Female		Male
Age	Range	Age	Range
0-	<6	None	None

Effective date: 11/04/2014

Ref. Range Notes

Negative: <= 5 mIU/mL Indeterminant: 6-24 mIU/mL; Suggest retesting indeterminate results after 72-96 hours Positive: >=25 mIU/mL

Specimen Type: Blood
Collection: HMC and UW-MT Onsite Locations:
Preferred: 4 mL blood in GOLD SST tube
Also Acceptable: 4 mL blood in ORANGE RST or RED TOP tube
Unacceptable: LIME GREEN PST or GREEN TOP tube
Pediatric: 2 Full GOLD MICROTAINER

Offsite Clinic or Other Locations:
Preferred: 4 mL blood in GOLD SST tube
Also Acceptable: 4 mL blood in ORANGE RST or RED TOP tube Unacceptable: LIME GREEN PST or GREEN TOP tube
Pediatric: 2 Full GOLD MICROTAINER
Quantity: Requested: 1 mL serum
Minimum: 0.5 mL serum

Receiving Instructions: Refrigerate serum
Stability: 8 hrs at Room Temp; 48 hrs at 2-8°C; >48 hrs freeze at -20°C. Thaw sample only once

Note: STAT requests for HALL HEALTH ONLY, see Test Catalog under Lab mnemonic: PGSTAT

Lab Department

Chemistry, Automated Panels(CHA)

Frequency

Daily

Available STAT?

Yes

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