Test Solution Manual for Blood Bank Rated A+
thrombocytopenia - Answers Isoimmunization to platelet antigen (P1^A1) and the placental transfer of
maternal antibodies would be expected to cause newborn
48 hours - Answers Following plasmapheresis, how long must a person wait before being eligible to
donate a unit of Whole Blood ?
80 - Answers Each unit of Whole Blood will yield approximately how many units of cryoprecipitated
AHF?
adenine - Answers Addition of what will enhance the shelf-life of whole blood?
antibody screening by antiglobulin test - Answers Pretransfusion compatibility testing must include:
ABO - Answers Severe intravascular hemolysis is most likely caused by antibodies of which blood group
system?
release O, Rh-negative red blood cells - Answers Under extreme emergency conditions when there is no
time to determine ABO group for transfusion, the technologist should:
Rh incompatibility - Answers An obstetrical patient has had 3 previous pregnancies. Her 1st baby was
healthy, the 2nd was jaundiced at birth and required an exchange transfusion, while the 3rd was
stillborn. Which os the following is the most likely cause?
autosomal codominant - Answers Whith regard to inheritance, most blood group systems are:
-20 degrees C - Answers The optimum storage temperature for Cryoprecipitated AHF is:
22 degrees C - Answers The optimum storage temperature for Platelets is:
-80 degrees C - Answers The oprimum storage temperature for Red Blood Cells, Frozen is:
4 degrees C - Answers The optimum storae temperature for Whole Blood is:
reagent red blood cells - Answers Quality control tests must be performed daily on:
mother has not been previously immunized to the D antigen - Answers Criteria determining Rh immune
globulin eligibility include:
d) confirmed positive test for HBsAg 10 yrs previous - Answers Which of the following constitutes
permanent rejection status of a donor? a)tattoo 5 months previous b)recent close contact w/ patient w/
viral hepatitis c.)2 units of blood transfused 4 month previous d) confirmed positive test for HBsAg 10 yrs
pre
reciepient antibody directed against antigens on the donor red cells - Answers The major crossmatch will
detect a(n):
, give a mixed field reaction with anti-A,B - Answers Cells of the A3 subgroup will:
A3 - Answers Mixed field reactions with anti-A and antiA,B and negative reactions with anti-B and anti-
A1 lectin(Dolichos biflorus) are observed. Without further testing, the most likely conclusion is that the
patient is group:
capable of causing hemolytic transfusion reactions - Answers Anti-Fya is:
patient's serum was omitted from the original testing - Answers A patient received 2 units of RBCs & had
a delayed hemolytic Tx rxn. Pre-Tx records show a neg antibody screen. Repeat testing of the pre-Tx
specimen detected an antibody at the antiglobulin phase. What is the most likely explanation for original
resuts?
agglutination with normal adult ABO-compatibility sera - Answers What is an indicator of
polyagglutination?
the agglutinates are mixed-field and refractile - Answers Anti-Sda is strongly suspected if:
an antibody such as antiSda - Answers Mixed-field sgglutination athe the anti-human globulin phase of a
crossmatch may be attributed to:
determination of teh presence of spherocytes ans elevated numbers of nucleated red blood cells -
Answers In suspected cases of hemolytic disease of the newborn, what signigicant information can be
obtained from the baby's blood smear?
irradiated - Answers As a preventive measure against graft-versus-host disease, red blood cells prepared
for infants who have received intrauterine transfusions should be:
maternal serum - Answers Which of tha following is the preferred specimen for the initial compatibility
testing in exchange transfusion therapy?
Fresh Whole Blood - Answers When the main objective is an exchange transfusion is to remove the
infant's antibody-sensitized RBCs and to control hyperbilirubinemia, the blood product of choice is ABO
compatible:
3.0 x 10^11 - Answers According to AABB standards, 75% of all Platelet, Pheresis units tested shall
contain how many platelets per uL?
allowed to sit undisturbed for 1 hour - Answers Following the 2nd spin in the preparation of Platelets,
the platelets should be:
light spin followed by a hard spin - Answers What is the proper procedure for preparation of Platelets
from Whole Blood?
prevent graft-vs-host (GVH) disease - Answers the purpose of a low-dose irradiation of blood
components is to:
thrombocytopenia - Answers Isoimmunization to platelet antigen (P1^A1) and the placental transfer of
maternal antibodies would be expected to cause newborn
48 hours - Answers Following plasmapheresis, how long must a person wait before being eligible to
donate a unit of Whole Blood ?
80 - Answers Each unit of Whole Blood will yield approximately how many units of cryoprecipitated
AHF?
adenine - Answers Addition of what will enhance the shelf-life of whole blood?
antibody screening by antiglobulin test - Answers Pretransfusion compatibility testing must include:
ABO - Answers Severe intravascular hemolysis is most likely caused by antibodies of which blood group
system?
release O, Rh-negative red blood cells - Answers Under extreme emergency conditions when there is no
time to determine ABO group for transfusion, the technologist should:
Rh incompatibility - Answers An obstetrical patient has had 3 previous pregnancies. Her 1st baby was
healthy, the 2nd was jaundiced at birth and required an exchange transfusion, while the 3rd was
stillborn. Which os the following is the most likely cause?
autosomal codominant - Answers Whith regard to inheritance, most blood group systems are:
-20 degrees C - Answers The optimum storage temperature for Cryoprecipitated AHF is:
22 degrees C - Answers The optimum storage temperature for Platelets is:
-80 degrees C - Answers The oprimum storage temperature for Red Blood Cells, Frozen is:
4 degrees C - Answers The optimum storae temperature for Whole Blood is:
reagent red blood cells - Answers Quality control tests must be performed daily on:
mother has not been previously immunized to the D antigen - Answers Criteria determining Rh immune
globulin eligibility include:
d) confirmed positive test for HBsAg 10 yrs previous - Answers Which of the following constitutes
permanent rejection status of a donor? a)tattoo 5 months previous b)recent close contact w/ patient w/
viral hepatitis c.)2 units of blood transfused 4 month previous d) confirmed positive test for HBsAg 10 yrs
pre
reciepient antibody directed against antigens on the donor red cells - Answers The major crossmatch will
detect a(n):
, give a mixed field reaction with anti-A,B - Answers Cells of the A3 subgroup will:
A3 - Answers Mixed field reactions with anti-A and antiA,B and negative reactions with anti-B and anti-
A1 lectin(Dolichos biflorus) are observed. Without further testing, the most likely conclusion is that the
patient is group:
capable of causing hemolytic transfusion reactions - Answers Anti-Fya is:
patient's serum was omitted from the original testing - Answers A patient received 2 units of RBCs & had
a delayed hemolytic Tx rxn. Pre-Tx records show a neg antibody screen. Repeat testing of the pre-Tx
specimen detected an antibody at the antiglobulin phase. What is the most likely explanation for original
resuts?
agglutination with normal adult ABO-compatibility sera - Answers What is an indicator of
polyagglutination?
the agglutinates are mixed-field and refractile - Answers Anti-Sda is strongly suspected if:
an antibody such as antiSda - Answers Mixed-field sgglutination athe the anti-human globulin phase of a
crossmatch may be attributed to:
determination of teh presence of spherocytes ans elevated numbers of nucleated red blood cells -
Answers In suspected cases of hemolytic disease of the newborn, what signigicant information can be
obtained from the baby's blood smear?
irradiated - Answers As a preventive measure against graft-versus-host disease, red blood cells prepared
for infants who have received intrauterine transfusions should be:
maternal serum - Answers Which of tha following is the preferred specimen for the initial compatibility
testing in exchange transfusion therapy?
Fresh Whole Blood - Answers When the main objective is an exchange transfusion is to remove the
infant's antibody-sensitized RBCs and to control hyperbilirubinemia, the blood product of choice is ABO
compatible:
3.0 x 10^11 - Answers According to AABB standards, 75% of all Platelet, Pheresis units tested shall
contain how many platelets per uL?
allowed to sit undisturbed for 1 hour - Answers Following the 2nd spin in the preparation of Platelets,
the platelets should be:
light spin followed by a hard spin - Answers What is the proper procedure for preparation of Platelets
from Whole Blood?
prevent graft-vs-host (GVH) disease - Answers the purpose of a low-dose irradiation of blood
components is to:
