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Vanderbilt Pathology Laboratory Services

Test Directory



BETA-HUMAN CHORIONIC GONADOTROPIN, SERUM (BHC)

Department: Chemistry
Test Synonym(s): BHC, HCG
CPT Codes: 84702
Methodology: Chemiluminescent Immunoassay
Reference Range: Males 0-70 yrs: < 2.0 mIU/mL; Females 0-55 yrs: < 5.0 mIU/mL
Tube Type: Red top tube (no gel)
Specimen: Serum
Alternate Specimen: None
Pediatric Requirements: 1 microtainer
Volume: 5 mL
Minimum Volume: 1 mL
Temperature: Refrigerated
Stability: Room temperature: 8 hours; Refrigerated: 1 week; Frozen: 1 year
Reasons for Rejection: Incorrect specimen
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; Routine: 2 hours after receiving in lab
Significance: The Beta-hCG may be used to diangose and monitor pregnancy as well as to aid in diagnosis and monitoring gestational trophoblastic disease. This test can also be used to monitor patients with hCG secreting tumors.
Special Instructions: It is important to use the same beta-hCG assay for serial monitoring as they are not standardized across platforms.

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