hCG Test Kits | Quidel Rapid Visual Tests
2 天前 · Pregnancy tests can detect a pregnancy as early as 10 days after conception, especially if a first morning urine sample is used. False-positive tests can occur if for example the test is read improperly or if a woman is receiving hCG injections to treat infertility. False negative results can occur if the test is used too early in the pregnancy.
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