MMSC 409 TEST PAPER QUESTIONS AND
SOLUTIONS 100% CORRECT FOR THE 2026
FINAL.
◍ A prospective donor has a previous result on file: positive HIV test
result. This donor would be:
A. Accepted
B. Temp deferred (<1 year)
C. Indefinitely to permanently deferred (>1 year). Ans: C. Indefinitely
to permanently deferred (>1 year)
◍ Among the antibodies not yet ruled out, which of these NOT an
antibody directed against a low incidence antigen.
A. Anti-Cw
B. Anti-K
C. Anti-Kpa
D. Anti-Jsa. Ans: B. Anti-K
◍ Sickle cell disease. In the future, all red blood cell products should
be hemoglobin S negative and negative for which 3 RBC antigen
,A. C, E, K neg
B. c, e, k neg
C. C, Cw, E neg
D. c, Cw, e neg. Ans: A. C, E, K neg
◍ an O Neg recipient needs a transfusion of 4 FFP. What type of FFP
can this recipient receive.
A. O neg only
B. O neg A neg B neg and AB neg
C. O neg and AB neg
D. Any. Ans: D. Any
◍ A recipient who types a B pos needs a transfusion of 4 RBCs.
There are only 2 B Pos RBCs in inventory. Which of the following
blood types of RBCs could be safely transfused to this recipient? This
patient can safely receive.
A. B neg, O pos, and O neg
B. B neg, A pos, and A neg
C. B neg, AB pos, and AB neg
D. B neg. Ans: A. B neg, O pos, and O neg
◍ An A neg recipient needs a transfusion. Which blood types of
RBCs could be safely transfused.
,A. A neg and A pos
B. A neg and O neg
C. A neg and AB neg
D. A neg and B neg. Ans: B. A neg and O neg
◍ Please interpret the ABO/Rh typing result:
Anti-A 4+
Anti-B 4+
Anti-A,B 4+
Anti- D neg
A1 neg
B cells neg
A. O pos
B. AB pos
C. O neg
D. AB neg. Ans: D. AB neg
◍ Please interpret the ABO/Rh typing result:
Anti-A 4+
Anti-B neg
Anti-A,B 4+
Anti- D 3+
, A1 neg
B cells 4+
A. AB pos
B. A neg
C. A pos
D. B pos. Ans: C. A pos
◍ Which of the following is considered to be a high
frequency/incidence antigen
A. Vel
B. Js(a)
C. s
D. K. Ans: A. Vel
◍ A female patient is pregnant with a high risk pregnancy and her
sister is donating whole blood for her caesarean. This is an
____________ donation and will require the donated blood to be
___________ to prevent transfusion associated Graft vs. host disease
A. Apheresis...Irradiated
B. Autologous...Leuko reduced
C. Directed...Irradiated
D. Cell saver...Leuko reduced. Ans: C. Directed...Irradiated
SOLUTIONS 100% CORRECT FOR THE 2026
FINAL.
◍ A prospective donor has a previous result on file: positive HIV test
result. This donor would be:
A. Accepted
B. Temp deferred (<1 year)
C. Indefinitely to permanently deferred (>1 year). Ans: C. Indefinitely
to permanently deferred (>1 year)
◍ Among the antibodies not yet ruled out, which of these NOT an
antibody directed against a low incidence antigen.
A. Anti-Cw
B. Anti-K
C. Anti-Kpa
D. Anti-Jsa. Ans: B. Anti-K
◍ Sickle cell disease. In the future, all red blood cell products should
be hemoglobin S negative and negative for which 3 RBC antigen
,A. C, E, K neg
B. c, e, k neg
C. C, Cw, E neg
D. c, Cw, e neg. Ans: A. C, E, K neg
◍ an O Neg recipient needs a transfusion of 4 FFP. What type of FFP
can this recipient receive.
A. O neg only
B. O neg A neg B neg and AB neg
C. O neg and AB neg
D. Any. Ans: D. Any
◍ A recipient who types a B pos needs a transfusion of 4 RBCs.
There are only 2 B Pos RBCs in inventory. Which of the following
blood types of RBCs could be safely transfused to this recipient? This
patient can safely receive.
A. B neg, O pos, and O neg
B. B neg, A pos, and A neg
C. B neg, AB pos, and AB neg
D. B neg. Ans: A. B neg, O pos, and O neg
◍ An A neg recipient needs a transfusion. Which blood types of
RBCs could be safely transfused.
,A. A neg and A pos
B. A neg and O neg
C. A neg and AB neg
D. A neg and B neg. Ans: B. A neg and O neg
◍ Please interpret the ABO/Rh typing result:
Anti-A 4+
Anti-B 4+
Anti-A,B 4+
Anti- D neg
A1 neg
B cells neg
A. O pos
B. AB pos
C. O neg
D. AB neg. Ans: D. AB neg
◍ Please interpret the ABO/Rh typing result:
Anti-A 4+
Anti-B neg
Anti-A,B 4+
Anti- D 3+
, A1 neg
B cells 4+
A. AB pos
B. A neg
C. A pos
D. B pos. Ans: C. A pos
◍ Which of the following is considered to be a high
frequency/incidence antigen
A. Vel
B. Js(a)
C. s
D. K. Ans: A. Vel
◍ A female patient is pregnant with a high risk pregnancy and her
sister is donating whole blood for her caesarean. This is an
____________ donation and will require the donated blood to be
___________ to prevent transfusion associated Graft vs. host disease
A. Apheresis...Irradiated
B. Autologous...Leuko reduced
C. Directed...Irradiated
D. Cell saver...Leuko reduced. Ans: C. Directed...Irradiated
