
How Long Is A VDRL Test?

I am take some risk 23 of this month
How many days of waiting to take a test
It may take 1-2 weeks after chancre formation.
Detailed Answer:
Hello XXXX
VDRL(Venereal Disease Research Laboratory) test may take 1-2 weeks for positive results after chancre formation.Formation of chancre approximately take 3 to 90 days(averagely takes 3 weeks) to erupt.
So,you should wait for some days depending upon chancre formation.
However,sensitivity of the VDRL is about 78-86%.
VDRL test is based upon antibody produced by infected person.
FTA-ABS (Fluorescent treponemal antibody-absorption) is commonly used as a confirmatory test following positive VDRL test.This test is needed due to chances of false positive results of VDRL.
Get well soon.
Hope I have answered your question.
Further queries are most welcome.
Take Care
Dr.Indu XXXXXXX

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