FINALS LAB 2: BLOOD TYPING Flashcards
- process of determining the presence or absence of ANTIGENS ON RED BLOOD CELLS or ANTIBODIES IN THE SERUM/PLASMA for the purpose of identifying a person’s blood type
BLOOD TYPING
once the blood type has been identified, APPROPRIATE BLOOD UNITS MAY BE SELECTED FOR TRANSFUSION to an individual.
T OR F?
TRUE
_______________ may occur because of incompatibility.
ADVERSE TRANSFUSION REACTIONS
Involved blood group systems in BLOOD TYPING
ABO and Rh
ABO BLOOD GROUP
certain individuals may possess specific _____ on their RBCs which are found on specific ____________.
SUGARS; ABO ANTIGEN
by nature, _________ are preformed. Hence they are _____________
ABO ANTIBODIES; ROUTINELY DETECTED
The type of antibodies present in an individual are dependent on which ABO antigen/s is/are absent.
T OR F?
TRUE
TYPE A BLOOD
ANTIGEN:
ANTIBODY:
ANTIGEN: A
ANTIBODY: ANTI-B
TYPE B BLOOD
ANTIGEN:
ANTIBODY:
ANTIGEN: B
ANTIBODY: ANTI-A
TYPE AB BLOOD
ANTIGEN:
ANTIBODY:
ANTIGEN: BOTH
ANTIBODY: NONE
TYPE O BLOOD
ANTIGEN:
ANTIBODY:
ANTIGEN: NONE
ANTIBODY: ANTI-A and ANTI-B
- this system is composed of OVER 50 ANTIGENS. But the most important antigen is the “D ANTIGEN” because it is the SECOND MOST IMMUNOGENIC ANTIGEN after ABO antigens/
Rh BLOOD GROUP
Like ABO antibodies, Rh antibodies are preformed
T OR F?
FALSE, Rh antibodies are not preformed. They are only preformed DURING PREGNANCY or AFTER TRANSFUSION. Hence in Rh antibodies ARE NOT ROUTINELY DETECTED.
it is done by placing a SOURCE OF ANTIGEN (Ag) and a source of ANTIBODY (Ab) to a testing environment to detect Ab/Ag reaction (AGGLUTINATION) and /or the presence of HEMOLYSIS.
BLOOD TYPING
TYPES OF BLOOD TYPING
- detects ANTIGEN (Ag)
-uses RBCs as sample
FORWARD TYPING
