Blood Type Compatibility
A blood type is a classification of blood based on the presence or absence of antigens on the surface of red blood cells. Human blood is divided into one of four main blood types: A, B, AB, and O, and is further divided into Rh+ or Rh-.
Blood Type Compatibility
| Blood Type | O- | O+ | B- | B+ | A- | A+ | AB- | AB+ |
|---|---|---|---|---|---|---|---|---|
| AB+ | YES | YES | YES | YES | YES | YES | YES | YES |
| AB- | YES | YES | YES | YES | ||||
| A+ | YES | YES | YES | YES | ||||
| A- | YES | YES | ||||||
| B+ | YES | YES | YES | YES | ||||
| B- | YES | YES | ||||||
| O+ | YES | YES | ||||||
| O- | YES |
Composition of Blood
- Blood is the body's only fluid tissue.
- It is composed of liquid plasma and formed elements.
- Formed elements include:
- Erythrocytes, or red blood cells (RBCs)
- Leukocytes, or white blood cells (WBCs)
- Platelets
- Hematocrit - the percentage of RBCs out of the total blood volume.
