Not much: Blood tests are very useful and often essential for making many diagnosis, but there are no specific tests for pain. Blood test may done to assess the blood level of pain medication and prevent overdose or underdose.
Answered 10/17/2015
2.1k views
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question