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The rapid plasma reagin test (RPR test or RPR titer) is a type of rapid diagnostic test that looks for non-specific antibodies in the blood of the patient that may indicate an infection by syphilis or related non-venereal treponematoses. It is one of several nontreponemal tests for syphilis (along with the Wassermann test and the VDRL test).
The rapid plasma reagin (RPR) test uses the same antigen as the VDRL, but in that test, it has been bound to several other molecules, including a carbon particle to allow visualization of the flocculation reaction without the need of a microscope. Many other medical conditions can produce false positive results, including some viruses ...
This reaction is the foundation of “nontreponemal” assays such as the VDRL (Venereal Disease Research Laboratory) test and Rapid Plasma Reagin (RPR) test. Both these test are flocculation type tests that use an antigen-antibody interaction. The complexes remain suspended in solution and therefore visible due to the lipid based antigens.
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Replacement tests such as the VDRL test and the RPR test, initially based on flocculation techniques (Hinton), have been shown to produce far fewer false positive results. [ citation needed ] Indeed, the "biologic false positives" of modern tests usually indicate a serious alternate condition, often an autoimmune disease .
A cerebroprotectant (formerly known as a neuroprotectant) is a drug that is intended to protect the brain after the onset of acute ischemic stroke. [1] As stroke is the second largest cause of death worldwide and a leading cause of adult disability, over 150 drugs have been tested in clinical trials to provide cerebroprotection.
OMG—she's darling! Shadow has the perfect name for her jet-black coat, though it also makes me wonder whether she follows her mom around like a shadow, too.
The presentation of evidence to a grand jury is the next procedural step in obtaining an indictment. If convicted of second-degree murder in New York, Mangione would face 15 years to life in prison.