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Beta-hCG (Human Chorionic Gonadotropin) Quantitative, Serum

Order Name HCG QUANT
Test Number: 3601425
Revision Date 09/27/2023
Test Name Methodology LOINC Code
Beta-hCG (Human Chorionic Gonadotropin) Quantitative, Serum
Chemiluminescence Assay 21198-7 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2mL (1mL) Serum Clot Activator SST (Gold Top) Refrigerated
Alternate 1 2mL (1mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Instructions Stability: Ambient 1 days. Refrigerated 7 days. Frozen 1 year.

This test is suitable for both male and female patients applicable only to testing performed at 41st and Mingo location; see Clinical Use section below for more information.
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-3 days 
Clinical Use Useful for diagnosis of pregnancy, investigation of suspected ectopic pregnancy and monitoring in vitro fertilization patients. Elevated hCG concentrations not associated with pregnancy may be found in patients with other diseases such as tumors of the germ cells, ovaries, bladder, pancreas, stomach, lungs, and liver. Results obtained with different assay methods should not be used interchangeably in serial testing. It is recommended that only one assay method be used consistently to monitor each patient's course of therapy. 
CPT Code(s) 84702
Internal Comments 7/14/17 removed Freeze if not tested within 48 hours.- JK
6/14/18 change Specimen stability: Ambient 8 hours. Refrigerated 48 hours. to 
Stability: Ambient 1 days. Refrigerated 7 days. Frozen 1 year. - JK
12/13/18: Updated primary specimen container
05/18/20: Updated clinical use - SN
05/27/20: Updated clinical use - SN
6/19/20: removed from instructions -JK
"Specimen must be in original tube. No pour-off tubes are acceptable for the hCG Quantitative Pregnancy test."
7/11/2020 added "This test is suitable for both male and female patients; see Clinical Indication below for more information." to instructions - JK
 
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Chemistry