Dear Dr. Roach: I am a 79-year-old female. I am in generally good health, but have a question about RhoGAM. When I had my children in the ’60s, I was in the original study conducted to see if my AB ...

Many people don't know what their blood type is. It's either type A, type B, a combination called type AB or type O. But what makes those types different is a microscopic bit of protein on the surface ...

Dear Dr. Roach: I am a 79-year-old female and in generally good health, but have a question about RhoGAM. When I had my children in the ’60s, I was in the original study conducted to see if my AB ...

Dear Dr. Roach: I’m an 84-year-old Caucasian man in good health. In college, I donated blood and was told I was Type O-negative. Later in life, I donated many pints to the Red Cross. About 45 years ...

An important blood group is O negative, which is commonly called “universal.” Red blood cells can be received by patients with blood groups A, B, and O, irrespective of whether they are Rh positive or ...

Close up photo of female scientist holding a laboratory pipette and a blood sample tube for covid-19 in laboratory. She is wearing a protective suit, laboratory glasses, surgical mask and surgical ...