1
Turcan SBB exam review AABB Packet
Questions with Correct Answers | Updated
(100% Correct Answers)
Rh inheritence of Rhnull Answer: Lack LW
Lack FY5
KEL3 Issues Answer: KPa
in cis position may have suppressive effect on other Kell system
antigens
Adsorption applications in RBC testing Answer: Remove
autoantibody
Separate multiple antibodies
Confirm antigen or antibody specificity
Antilymphocyte Globulin (ALG) Answer: Made from horse serum
Interferes with DAT and IAT
Relation to Lu(a-b-)
PCR and TMA Answer: PCR used for DNA amp
TMA used for RNA amp
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,2
Autologous donor qualifications Answer: DR's order
Hgb >11, HCT 33%
Collected >72 hrs before surgery or Tx
Deferred if risk of bacteremia
Plateletpheresis count info Answer: >150,000 min
pre procedure plt count not required for infrequent donors
post-procedure plt count may be used to qualify donor for next
procedure
Two units RBC apheresis post donation H/H Answer: Donor HCT
not <30% or Hgb <10 g/dL after volume replacement following
donation
Anticoagulants and purpose of Answer: Dextrose:
Supports ATP generation
Adenine:
Provides substrate for ATP synthesis
Sodium biphosphate:
Controls pH or is buffer
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, 3
Citrate:
prevents clotting and coagulation
Changes in bag upon storage Answer: decreases in:
pH
2,3-DPG
ATP
Increases in:
Hgb
K
Oxygen dissociation curve information Answer: p50 is pO2 level at
which Hgb is 50% saturated
A normal p50 is about 25 pO2
increase p50, see right shift, more O2 released
decrease p50, see left shift, less O2 released
Reactive test results for TTD action Answer: Reactive results must be
retested in duplicate
© 2025 All rights reserved
Turcan SBB exam review AABB Packet
Questions with Correct Answers | Updated
(100% Correct Answers)
Rh inheritence of Rhnull Answer: Lack LW
Lack FY5
KEL3 Issues Answer: KPa
in cis position may have suppressive effect on other Kell system
antigens
Adsorption applications in RBC testing Answer: Remove
autoantibody
Separate multiple antibodies
Confirm antigen or antibody specificity
Antilymphocyte Globulin (ALG) Answer: Made from horse serum
Interferes with DAT and IAT
Relation to Lu(a-b-)
PCR and TMA Answer: PCR used for DNA amp
TMA used for RNA amp
© 2025 All rights reserved
,2
Autologous donor qualifications Answer: DR's order
Hgb >11, HCT 33%
Collected >72 hrs before surgery or Tx
Deferred if risk of bacteremia
Plateletpheresis count info Answer: >150,000 min
pre procedure plt count not required for infrequent donors
post-procedure plt count may be used to qualify donor for next
procedure
Two units RBC apheresis post donation H/H Answer: Donor HCT
not <30% or Hgb <10 g/dL after volume replacement following
donation
Anticoagulants and purpose of Answer: Dextrose:
Supports ATP generation
Adenine:
Provides substrate for ATP synthesis
Sodium biphosphate:
Controls pH or is buffer
© 2025 All rights reserved
, 3
Citrate:
prevents clotting and coagulation
Changes in bag upon storage Answer: decreases in:
pH
2,3-DPG
ATP
Increases in:
Hgb
K
Oxygen dissociation curve information Answer: p50 is pO2 level at
which Hgb is 50% saturated
A normal p50 is about 25 pO2
increase p50, see right shift, more O2 released
decrease p50, see left shift, less O2 released
Reactive test results for TTD action Answer: Reactive results must be
retested in duplicate
© 2025 All rights reserved
