abo system
Definition
Noun: A system for classifying human blood based on the presence or absence of inherited antigenic substances (A and B) on the surface of red blood cells. This system is fundamental to safe blood transfusion and organ transplantation, as it determines blood compatibility. The four main groups are A, B, AB, and O.
Usage
The term is used in medical, biological, and clinical contexts to refer to the primary method of blood typing. - The patient's ABO system type must be determined before any transfusion. - Compatibility within the ABO system is the most critical factor in blood donation.
Advanced Usage
- ABO Incompatibility: A condition that can occur if blood types are mismatched, leading to a severe immune reaction.
- The hemolytic reaction was caused by ABO incompatibility.
- ABO Typing: The laboratory process of determining an individual's ABO blood group.
- Standard pre-operative tests include ABO typing and Rh screening.
Variants and Related Words
- ABO Blood Group System: The full, formal name for the system.
- ABO Antigens: The specific protein markers (A and B) that define the groups.
- Blood Type / Blood Group: Common terms for an individual's classification within this system (e.g., Type A, Type O).
Synonyms
- Blood group system
- ABO blood typing system
- Major human blood group system
Related Phrases
- ABO and Rh: Often mentioned together, as the Rh factor (positive or negative) is the other major determinant in blood compatibility.
- All donors are tested for both ABO and Rh.
Noun
-
a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
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