Human Chorionic Gonadotropin

Human Chorionic Gonadotropin is a topic covered in the Davis's Lab & Diagnostic Tests.

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Chorionic gonadotropin, pregnancy test, HCG, hCG, α-HCG, β-subunit HCG.

To assist in verification of pregnancy, screen for neural tube defects, and evaluate human chorionic gonadotropin (HCG)–secreting tumors.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.

Normal Findings
Method: Immunoassay

Conventional UnitsSI Units (Conventional Units × 1)
Males and nonpregnant femalesLess than 5 milli-international units/mLLess than 5 international units/L
Pregnant females by week of gestation:
 Less than 1 wk5–50 milli-international units/mL5–50 international units/L
 2 wk5–100 milli-international units/mL5–100 international units/L
 3 wk200–3,000 milli-international units/mL200–3,000 international units/L
 4 wk10,000–80,000 milli-international units/mL10,000–80,000 international units/L
 5–12 wk10,000–200,000 milli-international units/mL10,000–200,000 international units/L
 13–24 wk5,000–80,000 milli-international units/mL5,000–80,000 international units/L
 26–28 wk3,000–15,000 milli-international units/mL3,000–15,000 international units/L

Critical Findings and Potential Interventions

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