Unit 1 Blood Typing - Active Recall

Vocabulary and compatibility rules for blood typing based on antigens, antibodies, and Rh factor interactions.

Antigens

Molecules on the erythrocyte membrane.

Antibodies

Molecules in plasma that bind antigens.

Agglutination

The clumping of erythrocytes.

A+ Blood type

Contains A and Rh antigens, contains anti-B antibodies, and agglutinates with anti-A and anti-Rh.

A- Blood type

Contains A antigens, contains anti-B and anti-Rh antibodies, and agglutinates with anti-A.

B+ Blood type

Contains B and Rh antigens, contains anti-A antibodies, and agglutinates with anti-B and anti-Rh.

B- Blood type

Contains B antigens, contains anti-A and anti-Rh antibodies, and agglutinates with anti-B.

AB+ Blood type

Contains A, B, and Rh antigens, has no antibodies, and agglutinates with anti-A, anti-B, and anti-Rh.

AB- Blood type

Contains A and B antigens, contains anti-Rh antibodies, and agglutinates with anti-A and anti-B.

O+ Blood type

Contains Rh antigens only, contains anti-A and anti-B antibodies, and agglutinates with anti-Rh.

O- Blood type

Contains no antigens, contains anti-A, anti-B, and anti-Rh antibodies, and results in no agglutination.

Rh+ Compatibility

Patients with this blood status can receive both Rh+ and Rh- blood.

Rh- Compatibility

Patients with this blood status can receive Rh- blood only.

Universal donor

O-

Universal recipient

AB+

Agglutination Shortcut: anti-Rh

Presence of agglutination indicates the patient is Positive (+); absence indicates they are Negative (-).

O+ to O- Transfusion

Can be performed ONCE.

A+ to A- Transfusion

Can be performed ONCE.

AB- to A- Transfusion

NO (Not a permissible transfusion).