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Feb 5, 2018

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Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

HCG, Quantitative

HCG, Quantitative (BHCG) Chemistry Lab Test

Name: HCG, Quantitative

Test Name: HCG, Quantitative

Health Link Test Code: BHCG

LIS Test Code: HCG

CPT Code(s): 84702

Methodology: Chemiluminescent Immunoassay

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Green cap with yellow ring (PST)

Also Acceptable: Green top, Red cap with yellow ring (SST), Red top

Collection Volume: 2 mL

Pediatric Collection Volume: 0.4 mL

Stability Refridgerated:

7 days if removed from cells, clot or gel

24 hours on gel

Stability Frozen:

1 year

Sample Analyzed: Plasma or serum

Testing Volume: 1 mL

Pediatric Testing Volume: 0.2 mL

Specimen Processing:

Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.

Interpretation:

Males and non-pregnant female ≤5.0 mIU/mL

The concentration of HCG rises rapidly during pregnancy. 

Interpretation Type: Reference Interval

Effective Date of Reference Range: Mon, 10 Aug 2015 00:00:00 CDT

Test Limitations:

This test is not intended for aiding in the diagnosis of cancer or for monitoring the treatment of cancer patients.

Additional Information:

The concentration of HCG rises rapidly during the first weeks of pregnancy, approximately doubling every two days. Low level HCG values >25 mIU/mL may be indicative of early pregnancy, but these results should always be evaluated in the context of the clinical situation: date of last menstrual period, pelvic examination and other clinical findings. When borderline results are encountered, patient should be redrawn 48 hours later.