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A member asked:

How does a pregnancy blood test work?

A doctor has provided 1 answer

HCG level: The embryo, after implantation in the uterus, makes human chorionic gonadotrophic hormone (HCG). Both blood and urine pregnancy tests depend on detecting HCG, a marker of pregnancy

Answered 10/20/2015

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Related Questions

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If I am testing early for pregnancy test , would blood work tell me more accurate if i got that done tomorrow ?

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My wife 2 weeks late the pregnancy test and blood work both turned out negative. Could there be a medical issue that we should be concerned with?

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What does it mean to have low levels from your blood work on friday yet Thursday the pregnancy test said 1-2 weeks and saturday a test said 2-3 weeks.

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How long would it take for urine test results for pregnancy? And blood work?

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Haveing very sticky white discharge and other symptoms of pregnancy had a pos digital test and then a neg two line test. Blood work neg. 20 days late?

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