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  2. Pregnancy test - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_test

    Pregnancy test. A modern hormone pregnancy test, showing a positive result. A series of pregnancy test strips, taken one per day at the beginning of a pregnancy. A pregnancy test is used to determine whether a female is pregnant or not. The two primary methods are testing for the female pregnancy hormone (human chorionic gonadotropin (hCG)) in ...

  3. False positives and false negatives - Wikipedia

    en.wikipedia.org/wiki/False_positives_and_false...

    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.

  4. Cryptic pregnancy - Wikipedia

    en.wikipedia.org/wiki/Cryptic_pregnancy

    Cryptic pregnancy. The term cryptic pregnancy is used by medical professionals to describe a pregnancy that is not recognized by the woman who is pregnant until she is in labor or has given birth. [1] The term is also used online for a special form of false pregnancy (pseudocyesis), or delusion of pregnancy, in which a woman who has no medical ...

  5. Contraction stress test - Wikipedia

    en.wikipedia.org/wiki/Contraction_stress_test

    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 ...

  6. Human chorionic gonadotropin - Wikipedia

    en.wikipedia.org/wiki/Human_chorionic_gonadotropin

    Human chorionic gonadotropin is a glycoprotein composed of 237 amino acids with a molecular mass of 36.7 kDa, approximately 14.5kDa αhCG and 22.2kDa βhCG. [4]It is heterodimeric, with an α (alpha) subunit identical to that of luteinizing hormone (LH), follicle-stimulating hormone (FSH), thyroid-stimulating hormone (TSH), and a β (beta) subunit that is unique to hCG.

  7. False pregnancy - Wikipedia

    en.wikipedia.org/wiki/False_pregnancy

    False pregnancy (or pseudocyesis, from the Greek pseudes "false" and kyesis "pregnancy") [1] is the appearance of clinical or subclinical signs and symptoms associated with pregnancy although the individual is not physically carrying a fetus. [2] The mistaken impression that one is pregnant includes signs and symptoms such as tender breasts ...

  8. Pregnancy from rape - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_from_rape

    While a woman who has become pregnant during the past 48 hours will test negative for pregnancy in an HCG pregnancy test (unless she was already pregnant before the rape), pregnancy resulting from the rape can be detected at the two-week follow-up visit. [60]

  9. Fetal fibronectin - Wikipedia

    en.wikipedia.org/wiki/Fetal_fibronectin

    Fetal fibronectin. Fetal fibronectin (fFN) is a fibronectin protein produced by fetal cells. It is found at the interface of the chorion and the decidua (between the fetal sac and the uterine lining). Fetal fibronectin is found normally in vaginal fluid in early pregnancy prior to 22 weeks due to normal growth and development of tissues at the ...

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