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A random urine, meaning a specimen that is collected at any time, can be used for many tests. However, a sample collected during the first urination of the morning (first morning specimen) is preferred for tests like urinalysis and pregnancy screening because it is typically more concentrated, making the test more sensitive.
The interpretation of urinalysis takes into account the results of physical, chemical and microscopic examination and the person's overall condition. Urine test results should always be interpreted using the reference range provided by the laboratory that performed the test, or using information provided by the test strip/device manufacturer. [136]
Immunologic pregnancy tests were introduced in 1960 when Wide and Gemzell presented a test based on in-vitro hemagglutination inhibition. This was a first step away from in-vivo pregnancy testing [42] [43] and initiated a series of improvements in pregnancy testing leading to the contemporary at-home testing. [43]
Screening for asymptomatic bacteriuria in pregnancy is a common routine in many countries, but controversial. [ citation needed ] The gold standard for detecting bacteriuria is a bacterial culture which identifies the concentration of bacterial cells in the urine.
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.
POCT includes: blood glucose testing, blood gas and electrolytes analysis, rapid coagulation testing, rapid cardiac markers diagnostics, drugs of abuse screening, urine strips testing, pregnancy testing, fecal occult blood analysis, food pathogens screening, hemoglobin diagnostics, infectious disease testing (such as COVID-19 rapid tests ...
Previous pregnancy tests, called A-Z tests or rabbit tests, were troublesome and time-consuming. They consisted of injecting women's urine twice a day, for three days, into mice or rabbits. [18] Then, the mice would have to be killed and scientists would examine if the mice had enlarged ovaries.
Many screening tests are inaccurate, so one worrisome test result frequently leads to additional, more invasive tests. If prenatal testing confirms a serious disability, many parents are forced to decide whether to continue the pregnancy or seek an abortion. The "option" of screening becomes an unexpected requirement to decide. See wrongful ...
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