1 doctor weighed in:

How are antibodies linked to a color change that a woman can see on a positive pregnancy test?

1 doctor weighed in
Dr. Rahil Malik
Obstetrics & Gynecology

In brief: Test for hcg

The urine pregnancy test has antibodies to HCG which detects its presence.
The presence of HCG is a marker for pregnancy. It produces a color change via a chemical reaction

In brief: Test for hcg

The urine pregnancy test has antibodies to HCG which detects its presence.
The presence of HCG is a marker for pregnancy. It produces a color change via a chemical reaction
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