ASCP MLT EXAM UPDATED QUESTIONS
AND CORRECT ANSWERS.
ACD/CPD/CPD2 - ANS 21 days
CPDA-1 - ANS 35 days
Infants
HDFN from ABO - ANS Spherocytes
1st pregnancy
O mother
Permanent deferral - ANS Hepatitis after 11
HIV
T. Cruzi
CJD
1 unit or PRBC - ANS Raises hemoglobin 1g and hematocrit 3%
Leukoreduced RBCs - ANS Less than 5 x 10^6 to prevent febrile non hemolytic reactions
Cryoprecipitate - ANS Factor 8
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,vWF
Fibrinogen
For DIC
6 hours
Platelets 1unit - ANS 5000 10000
Irradiated blood - ANS Prevent GVHD
Ulex europaeus - ANS Anti H lectin
Dolichos biflorus - ANS Anti A1 lectin
Amount of H greatest to least - ANS O
A2
B
A1
A1B
Most immunogenicity antigen - ANS D
Weak D - ANS Negative immediate spin and positive AHG
Weak D donor - ANS Must be labeled Rh positive
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Weak D patient - ANS Receives D negative
D control - ANS AB positive
Any D negative
IgM antibodies - ANS I
H
MN
P1
Lewis
IgG antibodies - ANS Rh group
K
Duffy
Jk
I, i antibody - ANS i converts to I as infant matures
Destroyed by enzymes - ANS MN
S
Duffy
Enhanced by enzymes - ANS Rh
Kids
Lewis
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, I
P1
Dosage - ANS MNS
Rh
Kids
Duffy
Top three acute/immediate transfusion reactions and mortality - ANS TRALI, hemolytic
transfusion reactions and TACO
IgE antibodies - ANS Mild Allergic reactions
IgA antibodies - ANS Severe transfusion allergic reaction
Anaphylactic
Positive hemolysis with negative DAT - ANS Sickle cell crisis
Thalassemia/G6PD deficient
Unit overheated or frozen
All cells hemolysis
Kernicterus - ANS Excess bilirubin in newborn
HDFN from Rh - ANS Retics
DAT positive
Immediate jaundice
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND CORRECT ANSWERS.
ACD/CPD/CPD2 - ANS 21 days
CPDA-1 - ANS 35 days
Infants
HDFN from ABO - ANS Spherocytes
1st pregnancy
O mother
Permanent deferral - ANS Hepatitis after 11
HIV
T. Cruzi
CJD
1 unit or PRBC - ANS Raises hemoglobin 1g and hematocrit 3%
Leukoreduced RBCs - ANS Less than 5 x 10^6 to prevent febrile non hemolytic reactions
Cryoprecipitate - ANS Factor 8
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,vWF
Fibrinogen
For DIC
6 hours
Platelets 1unit - ANS 5000 10000
Irradiated blood - ANS Prevent GVHD
Ulex europaeus - ANS Anti H lectin
Dolichos biflorus - ANS Anti A1 lectin
Amount of H greatest to least - ANS O
A2
B
A1
A1B
Most immunogenicity antigen - ANS D
Weak D - ANS Negative immediate spin and positive AHG
Weak D donor - ANS Must be labeled Rh positive
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Weak D patient - ANS Receives D negative
D control - ANS AB positive
Any D negative
IgM antibodies - ANS I
H
MN
P1
Lewis
IgG antibodies - ANS Rh group
K
Duffy
Jk
I, i antibody - ANS i converts to I as infant matures
Destroyed by enzymes - ANS MN
S
Duffy
Enhanced by enzymes - ANS Rh
Kids
Lewis
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, I
P1
Dosage - ANS MNS
Rh
Kids
Duffy
Top three acute/immediate transfusion reactions and mortality - ANS TRALI, hemolytic
transfusion reactions and TACO
IgE antibodies - ANS Mild Allergic reactions
IgA antibodies - ANS Severe transfusion allergic reaction
Anaphylactic
Positive hemolysis with negative DAT - ANS Sickle cell crisis
Thalassemia/G6PD deficient
Unit overheated or frozen
All cells hemolysis
Kernicterus - ANS Excess bilirubin in newborn
HDFN from Rh - ANS Retics
DAT positive
Immediate jaundice
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
