A pregnancy test is any one of a number of diagnostic lab procedures used to determine if a woman is pregnant. In addition to home tests that react to human chorionic gonadotropin, there are laboratory tests that use blood to look for the same chemicals.
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| - Pregnancy test
- Pregnancy Test
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| - A pregnancy test is any one of a number of diagnostic lab procedures used to determine if a woman is pregnant. In addition to home tests that react to human chorionic gonadotropin, there are laboratory tests that use blood to look for the same chemicals.
- When Sun believes she may be pregnant, she seeks out Sawyer's help in obtaining a pregnancy test, which he happens to have in his stash. Sun takes the test and discovers that she is in fact pregnant. The pregnancy test was made by Widmore Labs. The pregnancy test would also appear off-island, when Juliet's sister Rachel would use the test to determine if she was pregnant or not.about pregnancy
- The test for pregnancy which can give the quickest result after fertilization is a rosette inhibition assay for early pregnancy factor (EPF). EPF can be detected in blood within 48 hours of fertilization.However, testing for EPF is expensive and time-consuming.
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| - Rachel Carlson , An Unknown Flight 815 Survivor
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| abstract
| - The test for pregnancy which can give the quickest result after fertilization is a rosette inhibition assay for early pregnancy factor (EPF). EPF can be detected in blood within 48 hours of fertilization.However, testing for EPF is expensive and time-consuming. Most chemical tests for pregnancy look for the presence of the beta subunit of hCG or human chorionic gonadotropin in the blood or urine. hCG can be detected in urine or blood after implantation, which occurs six to twelve days after fertilization.Quantitative blood (serum beta) tests can detect hCG levels as low as 1 mIU/mL, while urine tests have published detection thresholds of 20 mIU/mL to 100 mIU/mL, depending on the brand. Qualitative blood tests generally have a threshold of 25 mIU/mL, and so are less sensitive than some available home pregnancy tests. Most home pregnancy tests are based on lateral-flow technology. With obstetric ultrasonography the gestational sac sometimes can be visualized as early as four and a half weeks of gestation and the yolk sac at about five weeks' gestation. The embryo can be observed and measured by about five and a half weeks. The heartbeat may be seen as early as six weeks, and is usually visible by seven weeks' gestation.
- A pregnancy test is any one of a number of diagnostic lab procedures used to determine if a woman is pregnant. In addition to home tests that react to human chorionic gonadotropin, there are laboratory tests that use blood to look for the same chemicals.
- When Sun believes she may be pregnant, she seeks out Sawyer's help in obtaining a pregnancy test, which he happens to have in his stash. Sun takes the test and discovers that she is in fact pregnant. The pregnancy test was made by Widmore Labs. The pregnancy test would also appear off-island, when Juliet's sister Rachel would use the test to determine if she was pregnant or not.about pregnancy
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