Rapid strep test (strep throat)
rapid strep test · strep throat test · throat swab for strep · RADT
A swab is taken from your throat. In a few minutes, the test shows if strep is there. Strep is a germ that often causes strep throat.
For a sore throat with fever and white spots on the tonsils, to find out if you need an antibiotic.
⏱ Duration: the swab takes a few seconds; results usually come in 5 to 15 minutes
Be sure to tell your doctor
How to prepare
- Food and drink. Usually do not eat or drink for 1 to 2 hours before the swab. Check with the clinic.
- Throat. In the morning, do not gargle or use throat sprays or lozenges.
- Medicines. Do not stop them on your own. Tell your doctor what you already took. They will decide.
What to bring
- Your referral, if you have one
- Your ID
How it goes
- You sit and open your mouth wide
- Your tongue is held down with a flat stick
- A swab is quickly rubbed over the tonsils and the back of the throat
- The swab is dipped in liquid and the test is started
- In a few minutes, the result shows on a strip
What you'll feel
- You may gag for a second
- Unpleasant, but not painful
Afterwards
- The result is usually given right away
- If the test is positive, your doctor will decide if you need an antibiotic
- If the test is negative but you have signs of strep throat, a throat culture is sometimes done too
Common questions
If the test is negative, does that mean no strep throat?
Not always. Sore throats are often caused by viruses. If there is still doubt, the doctor may order a throat culture.
Why test if strep throat is obvious?
It is hard to tell strep from a virus just by looking. The test helps you avoid antibiotics you do not need.