1 MT (AAB) Immunohematology Newest 2024 – 2025 Exam/ Actual Exam Questions with Correct Verified Answers / Rated A+
What is the acceptable temp range for a blood bank refrigerator? - Correct Answer - 1- 6C
According to FDA regulations, if blood is to be transported, then what temperature must be maintained during transportation? - Correct Answer - 1-10 C
What is the expiration date of RBC preserved with CPDA-1? - Correct Answer - 35 days
What is the expiration date of RBC preserved in ADSOL? - Correct Answer - 42 days
What is the shelf life of precipitated antihemophilic factor when stored at -18C or lower?
- Correct Answer - 1 year
What is the shelf life of FFP that is stored at -18C or lower? - Correct Answer - 1 year
What is the optimum temperature for thawing FFP? - Correct Answer - 2-8 C
What is the shelf life of platelet concentrates? - Correct Answer - 5 days at 20-24 degrees C with constant agitation
If the hermetic seal on a unit of packed RBC has been broken, how soon must the product be used in the blood bank refrigerator. - Correct Answer - 24 hours
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2 Which statement is INCORRECT regarding immune antibodies - Correct Answer - most often found in the MNS's system
What is the estimated percentage of patients immunized to blood group antigens? - Correct Answer - 1-4%
Which other antigen belongs to the MNSs blood group system? - Correct Answer - U
Anti-N sometimes shows dosage effect. Which cells will it react with most strongly if showing this effect? - Correct Answer - NN
Which antigen is found in plasma and absorbed onto the RBC - Correct Answer - Le (a)
Paroxysmal cold hemoglobinuria (PCH) is often associated with which antibody - Correct Answer - anti-P
The antigen Tju (a) is part of which blood group system - Correct Answer - P
An individual inherits the following genes: Lele Sese HHI AB. What soluble antigens will be secreted in the patient’s saliva? - Correct Answer - H, A, B, Le(a), Le(b)
Which one of the following is NOT true of anti-Le(a) - Correct Answer - causes hemolytic disease of the newborn
Which blood group system antigens are destroyed by enzymes? - Correct Answer - Lutheran
Which biochemical change does NOT occur in stored blood - Correct Answer - plasma K+ decreases
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3 Which one of the following is NOT a labeling requirement of specimens for cross matching - Correct Answer - ordering physician
All of the following statements concerning autologous transfusions are true EXCEPT which one? - Correct Answer - There are no donor blood requirements for them
In which autologous procedure is blood drawn and stored before the anticipated elective surgery? - Correct Answer - preoperative collection
For autologous blood donations, blood should not be drawn from the donor-patient within how many hours before the anticipated operation or transfusion? - Correct Answer - 72 hours
Which statement concerning the criteria for presurgical autologous donation is true - Correct Answer - Donor hemoglobin must be at least 11.0 g/dL
Which of the following pretransfusion test must be determined for an autologous transfusion recipient - Correct Answer - ABO/Rh testing
What procedure involves the withdrawal of blood to obtain plasma and subsequent reinfusion of the red blood cells into the donor? - Correct Answer - Plasmapheresis
Collection of plasma by pheresis more often than once every 8 weeks necessitates that which analyte(s) is(are) monitored at 4-month intervals? - Correct Answer - total protein
After donating a unit of whole blood, how long must a donor wait before he/she is eligible for plateletpheresis? - Correct Answer - 72 hours
How long must a plasmapheresis donor wait before donating whole blood - Correct Answer - 48 hours
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