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Medical providers often struggle to 'rule out' pregnancy for medical testing or treatment that cannot be conducted during pregnancy before they can do an accurate urine pregnancy test. [ 27 ] More rare, false negative results can also occur due to a " hook effect ", where a sample with a very high level of hCG is tested without dilution ...
The CST is used for its high negative predictive value. A negative result is highly predictive of fetal wellbeing and tolerance of labor. The test has a poor positive predictive value with false-positive results in as many as 30% of cases. [4] [5] A positive CST indicates high risk of fetal death due to hypoxia [3] and is a contraindication to ...
Therefore, a negative fFN test is a very strong indicator that preterm birth is not likely to occur within the next 7 days. [5] A 2019 Cochrane Review found that while management based on the results of fFN appeared to reduce preterm birth before 37 weeks, the quality of evidence was low. [7] The test is easily performed and is usually painless.
Pregnancy Test For Early Result. Some tests only offer a positive or negative result, but Wondfo has an invalid option to let you know if you need a redo—this is way better than receiving a ...
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A false negative error, or false negative, is a test result which wrongly indicates that a condition does not hold. For example, when a pregnancy test indicates a woman is not pregnant, but she is, or when a person guilty of a crime is acquitted, these are false negatives.
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