What antibodies does RPR test for?
A rapid plasma reagin (RPR) test is one of the various tests that screen for a sexually transmitted infection (STI) called syphilis. It is a simple blood test that checks for unique syphilis antibodies.
What is RPR antibody?
RPR (rapid plasma reagin) is a screening test for syphilis. It measures substances (proteins) called antibodies that are present in the blood of people who may have the disease.
What does it mean when your RPR is reactive?
A reactive RPR test result is considered abnormal because antibodies were detected. This could either indicate a current syphilis infection, or the presence of a past infection that has been successfully treated.
What disease produces antibodies like syphilis?
In many cases, the antibodies are produced because of another illness. Examples include an infection (such as chickenpox, Lyme disease or certain types of pneumonia) or an autoimmune disease (such as lupus). However, some people with a false-positive test for syphilis have it for no identifiable reason.
What can cause RPR positive?
Some conditions may cause a false-positive test, including:
- IV drug use.
- Lyme disease.
- Certain types of pneumonia.
- Malaria.
- Pregnancy.
- Systemic lupus erythematosus and some other autoimmune disorders.
- Tuberculosis (TB)
What can cause a positive RPR?
What would cause a false positive RPR?
The RPR test also can produce false-positive results, suggesting you have syphilis when you actually don’t. One reason for a false positive is the presence of another disease that produces antibodies similar to the ones produced during a syphilis infection.
What is RPR in pregnancy?
RPR = rapid plasma reagin; USPSTF = U.S. Preventive Services Task Force; VDRL = Venereal Disease Research Laboratory.
Can you have a false positive RPR?
Will RPR always be positive?
False negatives tend to be more common in the initial and end stages of infection. Among people who are in the secondary (middle) stage of infection, the RPR test result is nearly always positive. The RPR test also can produce false-positive results, suggesting you have syphilis when you actually don’t.
What is a positive RPR?
In general terms, a positive RPR blood test will indicate that there is a strong likelihood that the bacteria which causes syphilis is present and a negative test indicates it is not present.
What is RPR titer for syphilis?
Jump to navigation Jump to search. 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 a syphilis infection.
What does a reactive RPR test mean?
A reactive RPR may mean that you have an infection with the organism that causes syphilis (t. Pallidum) . You may need to have additional testing to confirm. If you’re infected, you will need to take medication to treat it.