HIV Test Result Meaning — Window Period and What Comes Next

An HIV screening test looks for antibodies or antigen. The single most important thing to understand is the window period: a test taken too soon after exposure can be negative even when infection has occurred.

Reference ranges

Non-reactiveNo HIV detected at this time
Reactive (screening)Requires a confirmatory test before any diagnosis
Window periodUp to 90 days for antibody tests; shorter for 4th-generation
Confirmed positiveOnly after a confirmatory assay

Reference ranges vary between laboratories and methods. Always read your result against the range printed on your own report.

Seek care urgently if

What a high result can mean

Reactive screening result

Must be confirmed — screening tests are designed to over-call rather than miss.

False reactive

Occurs with pregnancy, recent vaccination and some autoimmune conditions.

What a low result can mean

Non-reactive within the window period

May need repeating at 6 and 12 weeks after exposure.

Non-reactive outside the window

Reliably negative.

Have your result in front of you?

Send us the value and we will tell you whether it needs an appointment or not. No account, no form.

Ask about my HIV result

Nothing is stored on this website.

What happens next

A reactive screening result is always confirmed before anything is concluded. If confirmed, CD4 count and viral load establish the starting point — and treatment today is highly effective, with a normal life expectancy on it.

HIV Test HIV Confirmatory Test Full Blood Count

Other results people look up

This page explains what a result can mean in general terms. It is not a diagnosis and cannot account for your history, medication or examination. All visits to Mascot Healthcare are by appointment — Mon–Sat, 9AM–5PM, 52 Sholanke Street, Akoka, Yaba, Lagos.