AP BIOLOGY

Detailed explanation-1: -Also, Rh-negative blood is given to Rh-negative patients, and Rh-positive or Rh-negative blood may be given to Rh-positive patients. The rules for plasma are the reverse. The universal red cell donor has Type O negative blood.

Detailed explanation-2: -Rh typing is a standard part of a woman’s first prenatal visit. Sometimes, though, the results are anything but standard. Anywhere from 2 to 4 percent of women can type as both Rh positive (D+) and Rh negative (D-).

Detailed explanation-3: -Type O-positive blood can be transfused to any positive blood type: A-positive, B-positive, AB-positive, and of course other O-positives. Patients with O-positive blood can receive blood transfusions from other O-positives or O-negative donors.

Detailed explanation-4: -Type O-Negative donors are universal donors. This means that their red blood cells can be transfused to any patient, regardless of the recipient’s blood type.