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Beta HCG Quantitative
Test CodeBHCG
CPT Codes
84702
Preferred Specimen
GREEN Lithium Heparin Plasma
Minimum Volume
0.50 mL
Other Acceptable Specimens
SST Serum Separator, Red No Gel
Transport Container
GREEN Lithium Heparin
Transport Temperature
Room Temperature
Specimen Stability
Refrigerated: 5 Days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Vitros 7600
Clinical Significance
The detection of hCG in urine or blood within 3–4 weeks of the last menstrual period is the most reliable indicator for the confirmation of pregnancy. hCG is initially secreted by the trophoblast, and later by the chorion and placenta. Levels rise exponentially to a peak during the first trimester, declining to a plateau during the second and third trimesters. Measurement of hCG has also been applied in the diagnosis of ectopic pregnancy, threatened abortion, and multiple gestation.
Performed By
RFGH Laboratory
Performing Laboratory
RFGH Laboratory
