FROM UNCERTAINTY TO A PLAN

Plan an HIV test with confidence.

Understand when to test, which tests are available, what happens on the day, and what each result means.

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EXPLORE THIS TOPIC

Choose the question closest to yours.

Each category opens into focused guides, with related care and next steps on every page.

FAST FACTS

Testing: the essentials

Verified, plain-language facts to ground the rest of this section.

72h

Exposure within 72 hours? Ask about PEP before you test.

3

Main test types: antibody, antigen/antibody, and nucleic acid (NAT).

Window

A negative result may need repeating after the test's window period.

HIV testing window-period infographic with four illustrated testing settings for Asian adults under 40 and the usual detection ranges for NAT, laboratory antigen and antibody, rapid antigen and antibody, and antibody tests.

INFOGRAPHIC

HIV testing window periods

Compare the usual window periods for four common HIV testing approaches.

  • A nucleic acid test (NAT) can usually detect HIV 10–33 days after exposure.
  • A laboratory antigen/antibody test can usually detect HIV 18–45 days after exposure.
  • A rapid antigen/antibody test can usually detect HIV 18–90 days after exposure.
  • An antibody test can usually detect HIV 23–90 days after exposure.

DETAILED GUIDE

A quick guide to Testing

3 short partsAbout 2 min read
01

What Testing means for you

Understand when to test, which tests are available, what happens on the day, and what each result means. That short answer is the place to begin; what matters next is how it fits your situation—your reason for reading, the timing of any event, and the support you can reach. Treat this guide as a map: it can help you prepare and ask better questions, while a qualified health professional applies the details to you.

02

The essentials for Testing

HIV tests look for different markers—antibodies, the p24 antigen, or the virus itself—using oral fluid or blood, so no test detects HIV immediately. The date of a possible exposure and the test used both shape how a negative result is read. A reactive screening or self-test result always needs follow-up, and a possible exposure within the last 72 hours means asking about PEP right away.

03

Turn it into one next step

You do not need perfect medical words. Note any relevant dates, test names, or medicines, then choose one manageable action. For this page, a useful next step is start the first testing guide—a suggestion, not a rule. If it feels too big, make it smaller: save a phone number, check opening hours, or tell someone you trust. The plan can change as a result or new information arrives.