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26 years
How AND where can I get tested for all stds? Please be specific for each std. I want to know if I am "clean"or not. (For ex. HIV: blood test, lab), what are the other ones I should worry about?
Feb 20, 2015

Dr. Zakia Dimassi Pediatrics
If you got involved in unprotected sexual intercourse with a partner whose STI status is unknown, it’s a good idea to get tested. You also need to discuss the need for post exposure prophylaxis (PEP), a 28 day course of antiretroviral therapy (against HIV) with an infectious disease specialist.
The STIs we recommend that you be tested for are HIV, hepatitis B, hepatitis C, and syphilis. The other STIs, including herpes simplex virus (HSV), human papilloma virus (HPV), chlamydia trachomatis and Neisseria Gonorrhea need not be tested for.
These tests are available in large medical centers and labs.
It's best that you wait till 6 weeks after exposure to get tested for these infections to guarantee accurate detection rates; repeating these tests one more time at 3-4 months post exposure is also needed to confirm they're negative. Here's the explanation of these time intervals (which are based on the incubation period of the specified STIs):

Syphilis Blood Test:
Possible Detection: 1-2 Weeks
Most Likely Detection: 6 Weeks
Highest Accuracy:12 Weeks

HIV Antibody Test:
Possible Detection: 3 Weeks
Most Likely Detection: 4-6 Weeks
Highest Accuracy: 12 Weeks
According to the CDC, most people infected with HIV will develop detectable antibodies within 25 days of exposure, while 97% of people will have antibodies by three months after exposure.

Hepatitis B Blood Test:
Possible Detection: 1-6 Weeks
Most Likely Detection: 6-10 Weeks
Highest Accuracy: 12 Weeks

Hepatitis C Blood Test:
Possible Detection:  4-5 Weeks
Most Likely Detection: 6-9 Weeks
Highest Accuracy: 10-12 Weeks

And Keep in mind remember that an infected person can transmit the infection/disease to others during incubation or window periods. So you must not engage in any sexual activity without protection.