Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MLT
BLOOD BANK
| Question | Answer |
|---|---|
| Following plasmapheresis, how long must a person wait before being eligible to donate a unit of whole blood? | 48 hours |
| Each unit of whole blood will yield approx. how many units of cryoprecipitated AHF? | 80 |
| Addition of what will enhance the shelf-life of whole blood? | adenine |
| 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 ...? | 5 days |
| The enzyme responsible for conferring H activity on the red cell membrane is alpha- | L-fucosyl transferase |
| 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... | irradiated |
| Anti-Fya is.. | 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: | cryoprecipitated AHF |
| The approx. percentage of the original plasma content of factor VIII recovered in cryoprecipitated AHF is: | 40%-80% |
| 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: | Anti-human globulins |
| A newborn demonstates petechiae, ecchymosis, and mucosal bleeding. the preferred blood component for this infant would be: | Platelets |
| 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: | factor IX |
| 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: | cryoprecipitated AHF |
| 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? | Cryoprecipitated AHF |
| What is the best source of Factor IX? | Prothrombin complex |
| Coughing, cyanosis, and difficult breathing are symptoms of what kind of transfusion reaction? | circulatory overload |
| Hypotension, nausea, flushin, fever and chills are symptoms of which trasfusion reaction? | hemolytic |
| Hives and itching are symptoms of which transfusion reaction? | allergic |
| Hemoglobinuria, hypotension and generalized bleeding are symptoms of which transfusion reaction? | hemolytic |
| Fever and chllls are symptoms of which transfusion reaction? | febrile |
| Cold agglutinin syndrome is best associated with which blood group? | I/i |
| Antibodies involved in warm autoimmune hemolytic anemia are often associated with which blood group system? | Rh |
| 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: | 12 months |
| 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: | Cryprecipitated AHF |
| 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 |
Created by:
cbuchano
Popular Laboratory Science sets