This test measures the level of testosterone in your blood. You may need this test if your doctor thinks you have low or high testosterone.

This test measures both your total and free testosterone levels. Having levels that are too high or too low can cause health problems.

This test measures the amount of carbamazepine in your blood. Carbamazepine is the generic name of tegretol, a medicine used to treat epilepsy, mania, bipolar disorder, and pain.

This test screens for tuberculosis by looking for the bacteria in the sputum, urine, or cerebrospinal fluid.

This test measures the level of triiodothyronine (T3) in your blood. T3 is a type of hormone made by your thyroid gland.

This test checks for antibodies that are a sign of Sjogren syndrome, an autoimmune disease that makes it hard for your glands to make enough moisture.

This test measures the level of SHBG in your blood. It can help find out whether you have abnormal testosterone levels.

This test looks for signs of antibodies called immunoglobulins in your blood. It can help diagnose an illness called multiple myeloma.

This is a series of tests that looks at how healthy your semen and sperm are.

This test looks for salmonella bacteria in your stool. Having these bacteria in your stool means you have a salmonella infection.