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Test Code hCG Quant, Serum/HCGQ Pregnancy Test, Quantitative hCG, Serum

Methodology

Chemiluminescence

Performing Laboratory

North Colorado Medical Center, Chemistry Dept.

Specimen Type

Plasma (LiHep)

Serum

Specimen Required

Collection Container/Tube:

Preferred: Green top (Lithium Heparin)

Acceptable: Serum Gel or Red Top

Specimen Volume:   1 mL

Specimen Stability

 

Specimen Type

Temperature

Time

Plasma Li Hep

Refrigerated

7 days

Serum SST

Refrigerated

7 days

Red Top – Separated

Refrigerated

7 days

 

Specimen Minimum Volume

0.5 mL

Reject Due To

 

Hemolysis

Mild OK; Gross reject

Lipemia

NA

Icterus

NA

Other

NA

 

Reference Values

 

 

Expected Quantitative hCG Values

 

Non-pregnant: 0-5 mIU/mL

 

 

 Gestational Age   hCG Level

0.2-1 week:           5-50 mIU/mL
1-2 weeks:            50-500 mIU/mL
2-3 weeks:            100-5,000 mIU/mL
3-4 weeks:            500-10,000 mIU/mL
4-5 weeks:            1,000-50,000 mIU/mL
5-6 weeks:            10,000-100,000 mIU/mL
6-8 weeks:            15,000-200,000 mIU/mL
2-3 months:          10,000-100,000 mIU/mL
2nd trimester:       12,000-60,000 mIU/mL
3rd trimester:        8,000-30,000 mIU/mL 

Note:

 

The quantitatiive hCG test is only sensitive down to 2 mIU/mL. Values reported as less than 2 mIU/mL may actually be zero.

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

84702