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The PFA-100 (Platelet Function Assay [1] or Platelet Function Analyser [2]) is a platelet function analyser that aspirates blood in vitro from a blood specimen into disposable test cartridges through a microscopic aperture cut into a biologically active membrane at the end of a capillary.
An ANA test is considered positive if fluorescence is seen at a titre of 1:40/1:80. Higher titres are more clinically significant as low positives (≤1:160) are found in up to 20% of healthy individuals, especially the elderly. Only around 5% of the healthy population have ANA titres of 1:160 or higher. [8] [53]
An anal Pap smear is the anal counterpart of the cervical Pap smear. [1] It is used for the early detection of anal cancer.Some types of human papillomavirus (HPV) can cause anal cancer. [2]
Labcorp on Wednesday began marketing to U.S. physicians the first test for a trio of blood biomarkers it says can detect the hallmarks of Alzheimer's, accelerating diagnosis of the brain-wasting ...
The ristocetin-induced platelet aggregation (RIPA) is an ex vivo assay for live platelet function.It measures platelet aggregation with the help of von Willebrand factor (vWF) and exogenous antibiotic ristocetin added in a graded fashion. [1]
Logical Observation Identifiers Names and Codes (LOINC) is a database and universal standard for identifying medical laboratory observations. First developed in 1994, it was created and is maintained by the Regenstrief Institute , a US nonprofit medical research organization.
The term template bleeding time is used when the test is performed to standardized parameters. A newer alternative to the traditional bleeding time test is the platelet function screen performed on the PFA-100 analyzer.
Labcorp has been criticized over faulty paternity tests, many of which have resulted in lawsuits. The most notable case was the 2005 false accusation of Washington hairdresser Andre Chreky, who spent $200,000 and years in court proving, despite a false-positive test, that he was not the father.