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Pregnancy tests fall into two categories: at-home urine tests and the in-office blood test. At-home urine tests have different thresholds for the level of hCG they’re looking for, Dr. Ahmad says.
The rabbit test became a widely used bioassay (animal-based test) to test for pregnancy. The term "rabbit test" was first recorded in 1949, and was the origin of a common euphemism, "the rabbit died", for a positive pregnancy test. [4] The phrase was, in fact, based on a common misconception about the test.
Pregnancy tests may be used to predict if a pregnancy is likely to continue or is abnormal. Miscarriage, or spontaneous abortion or pregnancy loss , is common in early pregnancy. [ 29 ] Serial quantitative blood tests may be done, usually 48 hours apart, and interpreted based on the knowledge that hCG in a viable normal pregnancy rises rapidly ...
Actual use or typical use effectiveness rates include all women relying on fertility awareness to avoid pregnancy, including those who fail to meet the "perfect use" criteria. Rates are generally presented for the first year of use. [41] Most commonly, the Pearl Index is used to calculate effectiveness rates, but some studies use decrement ...
Before immunological pregnancy tests were developed in the 1960s, women relied on urine-based pregnancy tests using animals, ranging from mice to frogs. [ 1 ] [ 2 ] Advancements in medical technology have enabled women to accurately check their pregnancy status by using 'pee-on-a-stick' pregnancy test kits at home.
It can be done as early as 11 days after suspected pregnancy. Another pregnancy test can be performed through a lab test by MD referral. This can be done as early as 3-5 days.--Xerxes Grinder 03:07, 9 September 2009 (UTC) —Preceding unsigned comment added by Xerxesgrinder (talk • contribs)
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