Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
Antibodies take several weeks to show up. A typical bullseye rash after a tick bite is treated without testing.
Why it's done
- Symptoms like joint swelling, facial drooping, or heart rhythm problems after possible tick exposure
Getting ready and what happens
- No preparation is needed.
How the test is done
- A health worker cleans the skin, puts a band around your arm, and draws blood from a vein with a small needle. It takes a few minutes.
What the results mean
Positive
With matching symptoms, supports Lyme disease. Antibodies can stay positive after treatment.
Negative early on
May be retested in a few weeks.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related medicines
Sources
Last updated 2026-11-13.