Pregnancy testing | 合法醫療器材資訊網

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2019年12月20日 — 9 causes of a false-positive pregnancy result · You took the test too early · You had a chemical pregnancy · You have an ectopic pregnancy · You ... Read More

It's also not totally unheard of for a test to be defective or to give false results past its expiration date. (Take two different brands of tests if you're suspicious about ... Read More

由 C Gnoth 著作 · 2014 · 被引用 84 次 — Another cause of observed false negative results for home pregnancy tests can be due to unusually high concentrations of hCGβcf, the core fragment of β-hCG, ... Read More

由 R Mital 著作 · 2020 — However, there are several conditions that may cause a false-positive urine pregnancy test, including tropho-blast tumors, malignancy, nephrotic syndrome, ... Read More

2020年10月1日 — A very rare cause of a false negative pregnancy test is when the hCG hormone in your body does not react with the anti-hCG chemicals in the test ... Read More

What factors can give false positive results? A. A positive result may be seen if you had a miscarriage or have given birth within the past 8 weeks (since hCG may ... Read More

I finally tested negative 1 day before the LH strips showed peak ovulation. ... A LOT of false positives that appear within the first 2-3 minutes after taking the test,​ ... Read More

False-negative results · The test kit is used too early in the pregnancy and hCG levels are too low to be detected. · The test is incorrectly timed. · The test is used ... Read More