This blood test is used to look for antibodies that your body makes to fight Rocky Mountain spotted fever, a serious bacterial infection caused by a tick bite.

This test checks for influenza antibodies in a sample of secretions from your nose or throat.

This test measures a substance called parathyroid hormone in your blood. This hormone is needed to help regulate the level of calcium in your blood.

This screening test looks for abnormal cells in the cervix. If abnormal cells are found, your health care provider can treat them right away, before they become cancer.

This test measures a substance in your blood called pancreatic polypeptide. Higher levels may mean you have a type of pancreatic tumor.

This test checks for an infection from the Yersinia bacteria. This infection is also called yersiniosis.

This test looks for bacteria or other organisms in a wound. The test is used to find out if a wound is infected. It can also identify the type of organism that's causing the infection.

This test measures the number of white blood cells in your blood. When you get sick, your white blood cell count is higher than normal because your body is releasing more of these cells to fight the infection.

This tests looks for the virus that causes Western equine encephalitis, an infection spread to people through bites from infected mosquitoes.

This is a blood test that checks for West Nile virus, an infection that usually affects birds. It can be spread to people through the bite of an infected mosquito.