Rh typing is very important during pregnancy. If you are Rh negative and your baby is Rh positive, you may have an Rh incompatibility.

This test measures the number of reticulocytes in your blood. It can be used to diagnose anemia and find out why you have a disease.

A red blood cell (RBC) count is a blood test that measures the number of red blood cells, or erythrocytes, in your bloodstream.

This test looks for antibodies to red blood cells (RBCs) in your blood. These antibodies can cause problems during blood transfusions or, if you're pregnant, with your unborn baby.

This test looks for bacteria that cause strep throat and scarlet fever. Both of these illnesses are quite contagious.

This test looks at cells taken from fluid in your nose or throat to see if you have respiratory syncytial virus (RSV), which attacks the upper respiratory tract.

This blood test looks for signs of syphilis, a sexually transmitted infection that can cause serious health problems if not treated.

This test quickly checks for signs of the influenza virus in a sample of secretions from your nose or throat.

This test measures the amount of antibodies called immunoglobulins in your blood. The test can tell whether you are lacking in one or more of these antibodies.

This test is 1 of several that looks at how well your blood clots. Your healthcare provider may use this test to help diagnose a blood clotting disorder.