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Test Code HCGQ.1 HCG QUANTITATIVE, TOTAL

Additional Codes

N.HCGQUANT

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Serum or Plasma

Container: SST tube or Green top Lithium heparin

Specimen Collection: 1 mL (minimum 0.5 mL)

  1. Allow specimen to clot completely if a serum tube (SST) was used for the draw.

  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated.

  3. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn from i.e. GREEN.

Alternate Specimen: Serum from red top tube.

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 7 days poured off

Specimen Rejection

1.  Clotted specimen

2.  Exceeding stability requirements

3. Unlabeled specimen

Maximum Laboratory Time

24 - 48 hours

Reference Ranges

HCG-Quant Beta Subunit                mIU/mL
Non-pregnant females                  0 - 5

 

Pregnant women normally attain serum HCG concentration of up to 50 mIU/mL in the week following conception. A maximum is reached by the second to third month. During the first six weeks of pregnancy, HCG concentrations have a doubling time of approximately two days.

HCG-Quant Beta Subunit                    mIU/mL
1 wk                     5 - 50
2 wks                   40 - 1000
3 wks                 100 - 5000
4 wks                 600 - 10000
5 - 6 wks               1500 - 100000
7 - 8 wks             16000 - 200000
2 - 3 mos             12000 - 300000
2nd Trimester             24000 - 55000
3rd Trimester               6000 - 48000

 

 

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

84702