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Group A streptococcus throat test

Infection and immunity tests · also printed as Strep A, Group A strep, Strep A rapid test, Throat swab, Throat swab culture

Typical UK adult rangeExpected result: Negative

Negative is the expected result.

What this test measures

This test detects the bacterium behind strep throat, on a throat swab by rapid antigen test or culture.

Why doctors request it

Used in pharmacies and GP surgeries for sore throats with fever and no cough.

What commonly pushes it up

Strep A infection, or carriage without illness in some children

What commonly pushes it down

A negative result is the usual finding

Everyday reasons for a value outside the range

Low-level positives occur in the general population and are read with the clinical picture
Thresholds differ between laboratories

About the sample

No fasting needed.

Written by a UK consultant physician. Typical UK adult reference ranges; your laboratory's own printed range takes precedence.

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This is an educational summary of results you uploaded. It is not medical advice, a diagnosis or a treatment plan, and it does not replace the doctor who requested the test. If you are worried, or a result is marked outside range, discuss it with your doctor. Written and reviewed by a UK consultant physician. Reference ranges vary between laboratories.