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|Following plasmapheresis, how long must a person wait before being eligible to donate a unit of whole blood?
|Each unit of whole blood will yield approx. how many units of cryoprecipitated AHF?
|Addition of what will enhance the shelf-life of whole blood?
|The optium storage temp for Cryoprecipitated AHF is...?
|-20 degree C
|The optimum storage temp for Platelets is?
|22 degrees C
|The optimum storage temp for Red Blood Cells, Frozen is...?
|-80 degrees C
|Platelets prepared in a polyolefin type container, stored at 22-24 degrees celcius in 50 ml of plasma and gently agitated can be used for up to ...?
|The enzyme responsible for conferring H activity on the red cell membrane is alpha-
|What is the proper prodedure for preparation of Platelets from whole blood?
|Light spin followed by a hard spin
|Following the second spin in the preparation of Platelets, the platelets should be:
|allowed to sit undisturbed for 1 hour
|Anti-Sda is strongly suspected if...
|the agglutinates are mixed-field and refractile
|In suspected cases of hemolytic disease of the newborn, what significant information can be obtained from the baby's blood smear?
|determination of the presence of sperocytes and elevated numbers of nucleated red blood cells
|As a preventive measure against graft-versus-host disease, red blood cells prepared for infants who have received intrauterine transfusions should be...
|capable of causing hemolytic transfusion reactions
|Cells of the A3 subgroup will:
|give a mixed field reaction with anti A,B
|Mixed-field agglutionation at the anti-human globin phase of a crossmatch may be attributed to:
|an antibody such as anti-Sda
|When the main objective of an exchange transfusion is to remove the infants antibody-sensitized red blood cells and to control hyperbilirubinemia, the blood product of choice is ABO compatible:
|Fresh Whole Blood
|Acccording to AABB standards, 75% of all platelet, phresis units tested shall contain how many platelets per ul:
|3.0 times 10 to the eleventh
|The purpose of a low-dose irradiation of blood components is to:
|prevent graft-versus-host (GVH) disease
|The most effective component to treat a patient with fibrinogen dificiency is:
|The approx. percentage of the original plasma content of factor VIII recovered in cryoprecipitated AHF is:
|A solution of gamma globulins containing anti-Rh (D) is given to an Rh (D) negative mother to:
|Prevent fetal cells from initially sensitizing the mother
|What is Coombs sera comprised of:
|A newborn demonstates petechiae, ecchymosis, and mucosal bleeding. the preferred blood component for this infant would be:
|A 65 year old woman experienced shaking, chills and fever of 103 approx 40 min following the transfusion of a second unit of rbc's. the most likely explanatio for the patient's symptoms is:
|severe febrile transfusion reaction
|The Liley method of prediction the severity of hemolytic disease of the newborn is based on the amniotic fluid:
|change in optical densiy measured at 450 nm
|A unit of FFP was inadvertently thawed and then immidiately refrigerated at 4 degrees celcius on Monday. On Tues evening this unit may still be transfused as a replacement for:
|Use of EDTA plasma prevents activation of the classical complement pathway by:
|cheleting Ca++ ions, which prevents assembly of Cl
|The most effective component to treat a patient with fibrinogen deficiency is:
|What blood component must be prepared within 8 hours after phlebotomy?
|fresh frozen plasma
|Although ABO compatibiity is preferred, ABO incompatible product may be administered when transfusion?
|What is the best source of Factor IX?
|Coughing, cyanosis, and difficult breathing are symptoms of what kind of transfusion reaction?
|Hypotension, nausea, flushin, fever and chills are symptoms of which trasfusion reaction?
|Hives and itching are symptoms of which transfusion reaction?
|Hemoglobinuria, hypotension and generalized bleeding are symptoms of which transfusion reaction?
|Fever and chllls are symptoms of which transfusion reaction?
|Cold agglutinin syndrome is best associated with which blood group?
|Antibodies involved in warm autoimmune hemolytic anemia are often associated with which blood group system?
|A method currently in routine use for freezing Red Blood Cellss is:
|high concentration of glycerol (40% w/v)
|Rejuvenation of a unit of Red Blood Cells is a method used to :
|restore 2,3 DPG and ATP to normal levels
|Cryoprecipitated AHF,if maintained in the frozen state at -18 degree C or below, has a shlelf life of:
|The quality assurance program for Red BLood Cells, Deglycerolized should include regularly scheduled monitoring to determine:
|acceptable glycerol removal
|What is an example of polyagglutinable red cells:
|are agglutinated by most adult sera
|Tn(polyagglutinable) activation may lead to an :
|abo descrepancy caused by problems with the patients red blood cells
|Mixed field agglutination encountered in ABO groupin would most likely be due to:
|A3 red cells
|The use of leukocyte-depleted RBC's and Plt Concentrations is indicated for which patient group:
|patients with history of febrile transfusion reaction
|Blood selected for exchange transfusion must:
|lack red blood cell antigens corresponding to maternal antibodies
|ABO-hemolytic disease of the newborn:
|is usually seen only in the newborns of group O mothers
|While performing routine postpartum testing for an Rh immune globulin (RhIg) candidate, a weakly positive antibody test was found. Anti-D was identified. This antibody is most likely the result of:
|antenatal administration of RhIg at 28 weeks gestation
|A blood component used in the treatment of hemophilia A is:
|Factor VIII concentrate
|A 24 yr old with hemophilia is involved in an auto accident and is actively bleeding. Factor VIII assay are 8%. The blood product of choice is:
|Which of the following blood components is most appropriate to transfuse an 8-year old male hemophiliac who is about to undergo a minor surgery?
|heat-treated Factor VIII concentrate
|According to AABB standards, platelets prepared from whold blood shall have at least:
|5.5X10 to the tenth power, platelets per unit in at least 75% of the units tested
|A cause for permanent defferal of blood donation is:
|a history of jaundince of uncertain cause