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HCG, URINE, QUALITATIVE

Mnemonic

_U HCGS

Synonym

Total β-Human Chorionic Gonadotropin - Total B-hCG - Urine Pregnancy Test

Guidelines

This test is meant to “Rule-in” pregnancy. For ruling out pregnancy, a quantitative hCG in serum or plasma (HCGQ) is recommended. 

Specimen Collection Requirements

Collect

Urine, sterile glass or plastic cup. Any urine specimen can be used, but a first voided morning specimen is preferred.

Handling

Turbid urine specimens should be centrifuged before testing. If particulate matter is present, centrifuge before testing. If urine was frozen, specimen must be completely thawed, thoroughly mixed, and brought to room temperature for at least 30 minutes before testing.

Preferred Volume

1.0 mL Urine

Minimum Volume

0.5 mL Urine

Transport

Refrigerated (2-8°C)

Rejection Criteria

Urine containing excessive bacterial contamination and/or frozen and thawed more than once.

Stability

Ambient (18-26°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (≤ -20°C): 2 months

Testing Information

Performed

7 days/week

Reported

24 hours

Method

EIA

Reference Values

Reference Values

hCG

Interpretation

<20 mIU/mL

An hCG result of <20 mIU/mL in urine does NOT rule out pregnancy. A patient can still have hCG in the urine and give a <20 mIU/mL result if she has recently become pregnant. Interpret result with caution. If there is any question, order a quantitative hCG in serum or plasma (HCGQ).

Positive

A result of ≥20 mIU/mL in urine is considered positive for hCG.

CPT Codes

81025

Last Updated: Thursday, January 5, 2017 03:40:25 AM


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