Blood Bank and Transfusion questions for the SLLE lab exam.
This section covers donor selection, blood component preparation and storage, immunohematology testing, compatibility testing and the recognition and investigation of transfusion reactions. Candidates for the SLLE should apply standard procedures to select safe components for each patient and resolve common serological problems.
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671
blood bank and transfusion practice questions
- 15%
- of the exam
- 8
- subtopics
- Oct 2026
- updated
Inside this topic.
The subtopics our blood bank and transfusion questions cover.
- Techniques
- Antibodies
- Transfusion Reactions
- Components
- Storage
- HDN
- Safety
- ABO System
Key facts to remember.
High-yield blood bank and transfusion points to revise before the exam.
- 1
Fresh frozen plasma is stored frozen at -18°C or colder, contains all the coagulation factors and should be ABO compatible with the recipient's red cells.
- 2
Cryoprecipitate is rich in fibrinogen, factor VIII, von Willebrand factor, factor XIII and fibronectin.
- 3
Irradiation of cellular components prevents transfusion-associated graft-versus-host disease in at-risk patients, such as recipients of directed donations from blood relatives.
- 4
Red cells in CPDA-1 have a shelf life of 35 days, and red cells in additive solutions such as SAGM up to 42 days, at 1-6°C.
- 5
Leukoreduction reduces febrile non-hemolytic reactions, HLA alloimmunization and the risk of CMV transmission.
Sample questions with answers.
10 practice questions for the SLLE Laboratory Technologist & Technician Licensing Exam - Saudi Arabia (Blood Bank and Transfusion). Pick an answer to see if you're right, with a full explanation.
Question 1
A DAT is positive with anti-IgG only. What does this MOST strongly indicate?
Question 2
A polyclonal antiglobulin test is positive. What is the next step?
Question 3
Which blood component does NOT require ABO and Rh compatibility testing?
Question 4
Red blood cells stored in CPDA-1 can be used for up to:
Question 5
Blood used for exchange transfusion in neonates should be:
Question 6
Antihuman globulin (AHG) targets:
Question 7
Which blood product should be used in isolated factor VIII deficiency?
Question 8
What is the shelf life of CPD-preserved blood?
Question 9
A blood group AB patient requires plasma transfusion. Which plasma is safest?
Question 10
A DAT is positive for C3 only. Which condition is MOST consistent?
Other topics in this exam.
Questions, answered
Make a single table of each component with its storage temperature, shelf life and main indication: red cells, platelets, fresh frozen plasma and cryoprecipitate. Add the special modifications, such as irradiation, leukoreduction and washing, with their indications. Storage questions depend on exact temperatures and expiry times, so learn the numbers precisely.
Stop the transfusion, keep the venous line open with normal saline, recheck the patient's identity against the unit and notify the clinician and blood bank. The laboratory investigation usually includes a clerical check, visual inspection for hemolysis, repeat ABO and RhD grouping on pre- and post-transfusion samples and a direct antiglobulin test. Further tests, such as culturing the unit, depend on the clinical picture.
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All 671 blood bank and transfusion questions, with explanations and a readiness score for this topic.