Due to a clerical error, several blood samples at a blood bank were not labeled. The three list below were conducted on each sample to identify each blood type.
Due to a clerical error, several blood samples at a blood bank were not labeled. The three list below were conducted on each sample to identify each blood type.
Test 1 = Unknown sample mixed with “anti-A” serum (contains type A antibodies)
Test 2 = Unknown sample mixed with “anti-B” serum (contains type B antibodies)
Test 3 = Unknown sample mixed with “anti-Rh” serum (contains type Rh antibodies)
(A) When unknown sample A was tested, agglutination (clumping) of red blood cells occurred in test 1, 2 and 3. The blood type of sample A is…
(B) When unknown sample B was tested, no agglutination (clumping) of red blood cells occurred in any tests. The blood type of sample B is…
(C) When unknown sample C was tested, agglutination (clumping) of red blood cells occurred in test 2 and 3, but not 1. The blood type of sample C is…
Blood typing is the method to determine the blood group of an individual. the presence of antigen and antibody in the red blood cells of the sample determine the blood group of the sample.
- The blood group A contains antigen A and antibody Anti B
- The blood group B contains antigen B and antibody Anti A
- The blood group AB contains antigen A, B and no antibody
- The blood group O contains no antigen and antibody Anti B as well as anti A
Agglutination reaction during this test helps in determining the type of antigen and antibody present on the red blood cells of the sample and therefore helps in determining the blood group.
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