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St. John Health System
Lab Catalog


Index:

hCG Beta Subunit, Qn (Serial)

Order Name HCG Beta Sub Qt
Test Number: 5196957
Revision Date 09/13/2024
Test Name Methodology LOINC Code
hCG Beta Subunit, Qn (Serial)
Electrochemiluminescence Immunoassay (ECLIA) 45194-8 
SPECIMEN REQUIREMENTS
Instructions Specimen Type:  Gel-barrier tube
Specimen Storage:  Room temperature
Specimen Collection:  Red-top tube, gel-barrier tube, OR green-top (lithium heparin) tube. Transfer separated serum or plasma to a plastic transport tube.  DO NOT use oxalate, EDTA, or citrate plasma.
Specimen Stability:   14 days 
Cause for Rejection:  Citrate plasma specimen; improper labeling
Special Instructions:  The account must submit the patient's Social Security number to monitor. Values 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. To order this test without the serial monitor service, use test 004416. 
GENERAL INFORMATION
Expected TAT 1 day 
CPT Code(s) 84702
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab