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Test Code LAB2813 HCG Quantitative (BHCG)

Important Note

If a quantitative HCG is ordered, order the serum test (BHCG) LAB2813.

If a qualitative HCG is ordered, order the urine test (UCG) LAB2672.

Additional Codes

CPT Code: 84702

Methodology

Beckman Coulter Chemiluminescent Assay for DxI Analyzer

 

Patient results determined by assays using different manufacturers for methods may not be comparable.

 

The Access Total βhCG (5th IS) assay recognizes intact hCG, the β subunit of hCG, nicked intact hCG and nicked βhCG isoforms. The free α subunit and β-core fragment yield no detectable response.

Performing Laboratory

TidalHealth Peninsula Regional - Core Laboratory

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Draw blood in a green-top (lithium heparin) tube. Spin down and send 2 mL of lithium heparin plasma.

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a gold-top serum gel tube. Spin down and send 2 mL of serum.

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Reference Values

Non-Pregnant Females: <3.0 mIU/mL

Males: <2.8 mIU/mL

Unspecified Sex: <5.0 mIU/mL

Postmenopausal reference range: <10.4 MIU/mL

Note: Appropriate for monitoring normal pregnancy, ectopic pregnancy, or threatened abortion. Trophoblastic or nontrophoblastic neoplastic conditions and post‐menopausal status should be considered when interpreting results. Doubling time for whole molecule assay is slightly >2 days. For pregnancy testing, results ranging from 7 to 25 mIU/mL may be considered borderline positive and testing should be repeated in 48 hours to confirm.

Additional Information

Available STAT