Doctor insights on:
Herpes False Positive
There are different types of herpes infections; herpes simplex infection of mouth (gingivostomatitis) and lips (labialis) are the most common. Others include genital herpes, and herpes zoster. Herpes infection could very mild to very dangerous depending on the type and location of the body affected. I ...Read more
Fairly Small: Not too likely as a culture is the actual organism itself that was cultured from the patient's lesion in question. Unless it is a mislabeled specimen in the lab as an example. ...Read more
Herpes simplex: Depends upon the test to which you are referring. Valtrex (valacyclovir) may diminish the presence of virus in the skin or mucous membranes lesions and lessen the chances of a viral culture being positive, but will not in any way alter the antibody test on a blood specimen. ...Read more
Is it possible to get a false positive herpes culture test? How often does it occur? What is the reasoning for it?
Rarely if ever: False positive results are very unlikely for HSV culture. If the test was actually a DNA test (PCR test), there is a slightly higher chance of false pos, but still very unlikely. If you have had a positive culture or PCR, for sure you have herpes at whatever site was tested (genital, oral). But if a blood antibody test, not culture or PCR, false positive results are quite common. Good luck. ...Read more
Can you get a false positive herpes test if it's by swob? Should you get a blood test to know for a fact? And can folliculitis be mistaken for herpes?
False pos very rare: False positive tests for herpes simplex virus (HSV) (culture or PCR) are extremely rare and you probably don't need a blood test. However, a blood test still may be useful, e.g. to help tell new herpes from a recurrent outbreak, or if for some reason the virus type (HSV1 or 2) wasn't determined from the swab test. Folliculitis and herpes can be confused, but rarely by an experienced clinician. ...Read more
Chances of having a false positive herpes type 1 blood test?9.1 igg.While other STDs remain negative 0.0 igg.Had my test 2 weeks later after exposure.
Prob. True Positive: Herpes type 1 is the herpes virus commonly associated with the mouth (cold sores). It can be positive without any other tests being positive. Many people are + for hsv 1 by the time they enter school, picking up the virus from family members. Hsv symptoms may take 2-14 days after exposure to show up and longer for a positive test. You may need to be retested to be sure. ...Read moreSee 1 more doctor answer
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