Test Overview
Test Methodology

Chemiluminescent Immunoassay (CLIA)

Test Usage

Useful in the diagnosis of early pregnancy, diagnosis of choriocarcinoma, tumor marker, embryonal cell carcinomas

Reference Range *

Normal male and non pregnant female =/< 5 mIU/mL. Positive pregnancy 25 mIU/mL and above. Post-menopausal women <12 mlU/mL. Tumor marker less than 5 mIU/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Specimens stored greater than 8 hours should not be used for testing.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

2 hours

Soft Order Code
BHCG
MiChart Code
Pregnancy (Serum), Quantitative bHCG
Synonyms
  • Beta Subunit HCG
  • HCG Beta Subunit
  • HCG, Quantitative
  • Human Chorionic Gonadotropin, Quantitative
  • Pregnancy Test
Laboratory
Chemical Pathology
Section
Automation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 48 hours or freeze for longer storage.

Alternate Specimen
Red Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Rejection Criteria
Specimen: Plasma
Additional Information

Tested by a chemiluminescent immunoassay manufactured by Siemens Healthineers, performed on Atellica IM system. Results determined from different manufacturers and/or methods may not be comparable.

Billing
CPT Code
84702
Fee Code
23305
LOINC
21198-7
NY State Approved
No