Depends on the test
There are many tests for lyme- elisa
, western blot, ifa, pcr, cultures.
Testing can be expensive. If you have limited resources i advise the igg & IgM western blot from igenex- their test is more thorough & sensitive than other labs. It costs about $200.
No single test totally proves or disproves if one has lyme- it is a clinical diagnosis, but the right tests are very helpful.