How the Rh Factor Test Is Done. The Rh factor test is a simple blood test. It won’t harm you or your baby. The doctor will use a needle to take a small amount of blood from your arm.

What the Results Mean. A negative antibody test tells you that you don't have harmful antibodies in your blood. If you're also Rh-positive, you can safely carry a baby with either a + or - blood type.

The blood tests of the future can reveal a lot more about a person's health, from neurodegenerative conditions to age-related diseases, said the Hong Kong clinical pathologist whose pioneering ...

Usually, blood tests involve taking a sample with the dreaded needle in the arm, which is then sent off to a lab to check for certain molecules that can indicate the presence or progression of a ...