Lone Star College System, North Harris BIOL 2402: Blood Typing Activity (Fall 2025)

Blood typing case study Scenario:

1. Patient 1: B-
2. Patient 2: A+
3. Patient 3: AB-
4. Patient 4: O+



RESULTS:

Chart A Reaction w. anti Reaction w. anti Reaction w. anti
-A -B -RH
Patient 1 No Reaction Agglutination No Reaction

Patient 2 Agglutination No Reaction Agglutination

Patient 3 Agglutination Agglutination No Reaction

Patient 4 No Reaction No Reaction Agglutination



Chart B What’s pt’s blood What blood types Which of the
Type can pt safely only 4 available
receive? pints of blood
(A+, AB-, AND
O+) should the
pt receive for a
transfusion?
Patient1 B- B-, O- B-
Patient 2 A+ A+,A- A+, O+
Patient 3 AB- AB-,A-,B-,O- AB-, B-
Patient 4 O+ O+ O+




1) Identify the blood groups of the following four accident patients who were
brought in by the EMTs.

Patient 1: B -

Patient 2: A+

Patient 3: AB-

Patient 4: O+


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