Q. What HIV test should I go for if my suspected exposure was 45 days ago?

Answered by Dr. Meha Malhotra and medically reviewed by iCliniq medical review team.

 

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Hello doctor,

What is the window period for HIV western blot test from the date of a suspected exposure? And, what is the accuracy of the test?


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Dr. Meha Malhotra
MD DERMATOLOGY VENEREOLOGY AND LEPROSY
Dermatology, HIV/AIDS Specialist, Venereology

Hello,

Welcome to icliniq.com.

  • It is highly sensitive and specific. It comes positive in six to eight weeks of exposure.

Regards.

For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist

 

Thank you doctor,

My last suspected exposure was 45 days back. Now, which test shall I go for to ensure that I am not infected?

 

Dr. Meha Malhotra
MD DERMATOLOGY VENEREOLOGY AND LEPROSY
Dermatology, HIV/AIDS Specialist, Venereology

Hello,

Welcome back to icliniq.com.

  • Repeat it after three months of exposure pertaining to the fact that you have no exposure in between.
  • If both are negative, you need not worry. Do send us the reports for evaluation.

Take care.

For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist


 

Thank you doctor,

Three months is a long time to wait. Are there any other tests for an early confirmation? I have done a blood test 45 days back which was a home sample collection. I have some fear and anxiety whether they used a new syringe needle or an old one. That is the reason I am planning to get this test done.

 

Dr. Meha Malhotra
MD DERMATOLOGY VENEREOLOGY AND LEPROSY
Dermatology, HIV/AIDS Specialist, Venereology

Hello,

Welcome back to icliniq.com.

Even small laboratories maintain basic standards these days. So, do not worry too much.

  • ELISA is done at six weeks and three months after exposure because a very small number of patients do not develop antibodies by six weeks.
  • The fourth generation tests detect both antigen and antibodies. The repeat test at third month is just to be sure.
  • RNA PCR (polymerase chain reaction) is a test which is the first to be positive within days of the exposure.

Regards.

For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist

 
 
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