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* HCG, Serum or Plasma, Qualitative

Mnemonic

HCGP

Synonym

Total Beta-Human Chorionic Gonadotropin – Total β-hCG – HCG Qual – Pregnancy Test

Specimen Collection Requirements

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red, or 3.0 mL mint green top (lithium heparin, PST) top tube

Supply Item Number - 101235 , 101192 or 147641

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Centrifuge and separate serum or plasma from cells ASAP. If samples are frozen, thaw only once before testing.

Preferred Volume

1.0 mL Serum/Plasma

Minimum Volume

0.5 mL Serum/Plasma (1.2 mL minimum whole blood draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

  • Grossly hemolyzed specimens
  • Specimens that have been frozen and thawed more than once

Stability

AFTER SEPARATION FROM CELLS:
PLASMA: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (≤ -20°C): 6 months
SERUM: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 7 days; Frozen (≤ -20°C): 6 months

Do not freeze/thaw specimens more than once.

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Chemiluminescent Immunoassay

Reference Values

Reference Values

Instrument Result

Qualitative Result

Interpretation

0-5 mIU/mL

Negative

hCG result is less than or equal to 5 mIU/mL.

6-25 mIU/mL

Low Positive

hCG result is between 6-25 mIU/mL. Consider a quantitative serum hCG (HCGQ) in 1-2 weeks to confirm pregnancy or rule out malignant conditions. In addition, low positive hCG levels may be observed in patients using hCG weight loss products and in peri- and post-menopausal women.

≥26 mIU/mL

Positive

hCG result is greater than or equal to 26 mIU/mL.


CPT Codes

84703

Last Updated: Thursday, February 11, 2021 09:24:50 PM


Client Services: 503-413-1234