MLT boards - Blood Bank (BOR)
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show | thrombocytopenia
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Following plasmapheresis, how long must a person wait before being eligible to donate a unit of Whole Blood ? | show 🗑
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Each unit of Whole Blood will yield approximately how many units of cryoprecipitated AHF? | show 🗑
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show | adenine
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show | antibody screening by antiglobulin test
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show | ABO
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Under extreme emergency conditions when there is no time to determine ABO group for transfusion, the technologist should: | show 🗑
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show | Rh incompatibility
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show | autosomal codominant
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The optimum storage temperature for Cryoprecipitated AHF is: | show 🗑
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The optimum storage temperature for Platelets is: | show 🗑
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show | -80 degrees C
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The optimum storae temperature for Whole Blood is: | show 🗑
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Quality control tests must be performed daily on: | show 🗑
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show | mother has not been previously immunized to the D antigen
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show | d) confirmed positive test for HBsAg 10 yrs previous
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The major crossmatch will detect a(n): | show 🗑
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Cells of the A3 subgroup will: | show 🗑
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show | A3
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show | capable of causing hemolytic transfusion reactions
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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? | show 🗑
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show | agglutination with normal adult ABO-compatibility sera
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Anti-Sda is strongly suspected if: | show 🗑
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show | an antibody such as antiSda
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show | determination of teh presence of spherocytes ans elevated numbers of nucleated red blood cells
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show | irradiated
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show | maternal serum
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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: | show 🗑
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Which of the following histories represents an acceptable donor? [Hct, BP, temp, pulse, age, sex] a) 39, 100/70, 99.8, 75, 71, F b) 37, 135/84, 98.6, 80, 35, M c) 41, 90/50, 99.4, 65, 65, M d) 45, 115/80, 98.6, 102, 17, M | show 🗑
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According to AABB standards, 75% of all Platelet, Pheresis units tested shall contain how many platelets per uL? | show 🗑
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show | allowed to sit undisturbed for 1 hour
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show | light spin followed by a hard spin
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show | prevent graft-vs-host (GVH) disease
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Platelets prepared in a polyolefin type container, stored at 22-24 degrees C in a 50 mL a plasma, and gently agitated can be used for up to: | show 🗑
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show | glucosyl transferase
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show | anti-H
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show | anti-c & anti-E
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A 25 yr old caucasian women, gravida 3, para 2, required 2 units of blood.The antibody screen was POS & the results of the antibody panel refer to chart pg. 44. What is the most probable genotype of the patient? | show 🗑
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A 25 yr old caucasian women, gravida 3, para 2, required 2 units of blood.The antibody screen was POS & the results of the antibody panel refer to chart pg. 44. Which common antibody has NOT been ruled out by the panel? | show 🗑
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show | anti-Ch
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show | chelating C++ ions, which prevents assembly of C1
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A Kleihauer-Betke stain of a postpartum blood film reveales 0.3% fetal cells. What is the estimated volume (mL) of the fetomaternal hemorrhage expressed as whole blood? | show 🗑
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show | Cryoprecipitated AHF
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An assay of plasma from a bag of cryoprecipitated AHF yields a concentration of 9 international units (IU) of Factor VIII per mL of cryoprecipitated AHF. If the volume is 9 mL, what is the Factor VIII content of the bag of IU? | show 🗑
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The approximate percentage of the original plasma content of Factor VIII recovered in cryoprecipitated AHF is: | show 🗑
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A newborn demonstrates petechiae, ecchymosis, and mucosal bleeding. The preferred blood component for theis infant would be: | show 🗑
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A 65-yr-old woman experienced shaking, chills, & fever of 103 degrees F approximately 40 min following the transfusion of a second unit of RBCs. The most likely explanation for the patient's symptoms is: | show 🗑
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An acid elution stain of a 1hr post delivery maternal blood, 2,000 cells were counted & 30 seemed to contain fetal hemoglobin. The medical center adds 1 vial of Rhogam to the dose when the est. volume of hemmorrhage exceeds 20 mL. Calculate the # of vials | show 🗑
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show | change in optical density measured at 450 nm
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A unit of FFP was inadvertently thawed and then immediately refrigerated at 4 degrees C on Monday morning. On Tuesday evening this unit may still be transfused as a replacement for: | show 🗑
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show | b. spontaneous abortion at 2 months, 3 months ago
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What is correct storage temperature for Fresh Frozen Plasma? | show 🗑
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show | R1R2
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What blood component contains the nost Factor VIII concentration relative to volume? | show 🗑
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show | Fresh Frozen Plasma
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Although ABO compatibility is prefered, ABO incompatible product may be administered when transfusing: | show 🗑
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What blood component is the best source of Factor IX? | show 🗑
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Coughing, cyanosis, and difficult breathing are symptoms of which transfusion reaction? | show 🗑
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show | hemolytic
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Hives and itching are symptoms of which transfusion reaction? | show 🗑
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show | hemolytic
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Fever and chills are symptoms fo what transfusion reaction? | show 🗑
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show | I/i
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show | large fetomaternal hemorrhage
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show | Rh
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show | Rh hemolytic disease of the newborn, infant has a false-negative Rh typing
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show | who is sensitized to platelet antigens
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A method currently in routine use for freezing Red Blood Cells is: | show 🗑
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show | restore 2,3-DPG and ATP to normal levels
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show | record the return and place the unit back into inventory
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show | 12 months
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show | acceptable glycerol removal
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What is a characteristic of polyagglutinable red cells? | show 🗑
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show | Tn activation
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What is characteristic of Tn polyagglutinable red cells? | show 🗑
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Mixed field agglutination encountered in ABO grouping would most likely be due to: | show 🗑
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show | patients with history of febrile transfusion reactions
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Blood selected for exchange transfusion must: | show 🗑
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show | only in the newborns of group O mothers
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show | antenatal administration of RhIg at 28 weeks' gestation
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A blood component used in the trreatment of hemophilia A is: | show 🗑
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A 24-year-old mans with hemophilia is involved in an auto accident and is actively bleeding. Factor VIII assay results are 8%. The blood product of choice is: | show 🗑
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An adult patient who is activly bleeding has test results listed on pg 53. 6 units of RBC' are ordered STAT. The Blood Bank has the RBC units listed on pg 53. Which of the units should be crossmatched for this patient while more blood is being ordered? | show 🗑
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What blood component is most appropriate to transfuse to an 8-year-old male hemophiliac who is about to undergo minor surgery | show 🗑
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show | 5.5 x 10^10 platelets per unit in at least 75% of the units tested
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show | % of fetal cells x 50
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According to the AABB standards, what is the minimum pH required for platelets? | show 🗑
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show | kept at room temperature
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show | febrile
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What transfusion reaction is characterized by high fever, shock, hemoglobinuria, DIC, and renal failure? | show 🗑
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What transfusion reaction occurs after infusion of only a few milliliters of blood and gives no history of fever? | show 🗑
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show | No further serologic testing is necessary
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A granulocyte transfusion is indicated if the patient has: | show 🗑
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Transfusion of what is needed to help correct hypofibrinogenemia due to DIC? | show 🗑
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According to AABB standards, Fresh Frozen Plasma must be infused within what period of time following thawing? | show 🗑
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show | 80
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show | 1-6 degrees C
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Cryoprecipitated AHF must be transfused within what period of time following thawing and pooling? | show 🗑
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show | ficin
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show | anti-c
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show | a false-negative result due to antigen excess
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the most serious transfusion reactions are due to incompatibility in which of the following blood group systems? | show 🗑
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a 29-year-old male is hemorrhaging severly. He is AB NEG. 6 units of blood are required STAT. The blood bank has units of AB POS, A NEG, A POS, O NEG, which would be most preferable for crossmatch? | show 🗑
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The results listed on page 57 were obtained on a patient's blood group and type during routine ABO and Rh testing: What is the course of action to resolve this problem? | show 🗑
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An antibody that causes in vitro hemolysis ans reacts with the red cells of three of ten crossmatched donor units is most likely: | show 🗑
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show | 1 to 5 days
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The most frequent transfusion-associated disease complication of blood transfusions is: | show 🗑
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A 22-yer-old man is admitted to the ER in shock following massive hemorrhage from knife wounds to his chest and abdomen. An emergency transfusion is required. What is the product of choice? | show 🗑
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show | patient has a positive direct antiglobulin test
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An antibody identification study is performed with the five-cell panel shown on page 58: An antibody against which of the antigens could NOT be excluded? | show 🗑
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A pt rec'd 2 units of RBC's & had a delayed Tx rxn. Ab screen records indicate that there was no agglutination except after the addition of IgG-sensitized cells. Repeat testing of the pre Tx specimen detected an antibody at the antiglobulin phase. explain | show 🗑
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show | B, Rh-positive
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What might cause a false-negative indirect antiglobulin test (IAT)? | show 🗑
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How many units of RBC's are required to raise the hematocrit of a 70-kg non-bleeding man from 24 to30%? | show 🗑
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After rec'vg a unit of Whole Blood, a Pt immediately developed flushing, nervousness, fever spike of 102 F, shaking, chills, & back pain. The plasma hemoglobin was elevated & there was hemoglobinuria. Lab investigation of this rxn would most likely show: | show 🗑
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A patient whose saline and albumin crossmatches were compatible had a severe hemolytic reaction. The one antibody most likely present is anti-: | show 🗑
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In the direct (DAT) and indirect (IAT) antiglobulin techniques. false-negative reactions may result if the: | show 🗑
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Which of the following antigens gives enhanced reactions with its corresponding antibody following treatment of the red cells with proteolytic enzymes? | show 🗑
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A request is received to crossmatch 5 units of RBCs on a man who is group AB, Rh-positive. The blood inventory is listed on page 60. Assuming all the blood crossmatched is compatible, the desirable sequence of blood units that can be issued for Tx is: | show 🗑
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show | 2
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show | Cryoprecipitated AHF
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show | Cryoprecipitated AHF
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show | Group A may be administered to both A and O reciepients
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What is an immediate non immunologic adverse effect of a transfusion? | show 🗑
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show | no transfusion
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show | 1
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A group A, Fh-positive infant of a group O, Rh-positive mother has a weakly positive direct antiglobulin test and a moderately elevated bilirubin at birth. The most likely cause is: | show 🗑
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show | PVP iodine complex
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When removed fron the refrigertor, a unit of donor blood was observed to have an accumulation of cream-colored material at the toe of the plasma. The most probable cause of the accumulation is: | show 🗑
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show | O, Rh-negative
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A patient who is group AB, Rh-negative needs 2 units of Fresh Frozen Plasma. Which units of pf plasma would be MOST acceptable for transfusion? | show 🗑
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show | anti-IgA antibodies
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When evaluating a suspected transfusion reaction, what is the ideal sample collection time for a bilirubin determination? | show 🗑
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show | anti-D serum followed by washing and antiglobulin serum
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Refer to the data on page 64. These parents would most likely have a child with the genotype: | show 🗑
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A 35-year-old man w/ von Willebrand's disease has an acute mosebleed & a hemoglobin level of 9.9gm/mL. What blood component is the MOST appropriate choice for transfusion to this patient. | show 🗑
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Refer to dato on page 64. What genotypes would correspond to these results? | show 🗑
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show | group O with no hemolytic anti-A or Anti-B
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4 units of blood are needed for elective surgery. The patient's serum contains anti-C, anti-e, anti-Fya, and anti-Jkb. Which would be the best source of donor blood? | show 🗑
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show | 2 are R1r, 2 are R1R1
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What unit should be selected for exchange transfusion if the newborn is group A, Rh-positive and the mother is group A, Rh-positive with anti-c? | show 🗑
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polyspecific reagents used in the direct antiglobulin test should have specificity for: | show 🗑
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show | detect preexisting antibodies on erythrocytes
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Human blood groups were discovered around 1900 by: | show 🗑
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show | 10,000
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If the seal is entered on a unit of Whole Blood stored at 1-6 degrees C, What is the maximum allowable storage period, in hours? | show 🗑
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A Whole Blood unit from a donor that contains a clinically significant red cell alloantibody should be: | show 🗑
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show | e
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Which of the following blood group systems is most commonly associated with delayed hemolytic transfusion reactions? Lewis, Kidd, MNS, or I | show 🗑
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show | IgG
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A mother is Group A, with anti-D in her serum. What is the preferred blood product if an intrauterine transfusion is indicated? | show 🗑
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show | a visual inspection for free plasma hemoglobin
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Even in the absence of prior transfusion or, individuals with the Bombay pheno-type (Oh) will always have naturally occurring: | show 🗑
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HLA antibodies are: | show 🗑
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show | the coordination of cellular and humoral immunity
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show | Red Blood Cells
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show | Kell
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Fresh frozen Plasma should be transfused within: | show 🗑
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Cryoprecipitated AHF is indicated for: | show 🗑
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show | plasma pH
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show | gently agitated
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show | functional platelet abnormalities
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show | delayed hemolytic transfusion reaction
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Fresh Frozen Plasma from a group A, Rh-positive donor may be safely transfused toa a patient who is group: | show 🗑
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show | membrane modification
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show | Donor red calls have a positive direct antiglobulin test (DAT)
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Rh immune globulin administration would NOT be indicated in a Rh-negative woman who has a: 1st trimester abortion, husband who is Rh-positive, anti-D titer of 1:4096, or positive direct Coomb's test | show 🗑
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A fetomaternal hemprrhage of 35 mL of fetal Rh-positive packed RBC's has been dected in an Rh-negative woman. How many vials of Rh immune globulin should be given? | show 🗑
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what information is essential on the label of recipient blood samples drawn for compatibility testing? | show 🗑
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Which of the following red cell antigens are found on glycophorin-A? M and N, Lea ad Leb, S and s, P and P1 and Pk | show 🗑
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show | syphilis
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show | lymphocytes
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AHG (coombs) control cells are coated only with: | show 🗑
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During the issue of an autologous unit of Whole Blood, the supernatant plasma is observed to be dark red in color. what would be the best course of action? | show 🗑
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show | rr
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show | have him rebreathe air from a paper bag
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The most important step in the safe administration of blood is to: | show 🗑
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show | Black
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the Kell (K1) antigen is strongly: | show 🗑
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show | anti-Lua
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which of the following HTLA antibodies is considered to be most clinically significant? anti-Yta, anti-Ch, anti-Yk, or anti-Cs | show 🗑
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A donor is tested with Rh antisera, with the following results: anti-D + anti-C + anti-E 0 anti-c + anti-e + Rh control 0 What is the most probable Rh genotype? | show 🗑
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while performing an antibody screen, a test reaction is observed that is suspected to be rouleaux. a saline replacement test is done and the reaction remains. What is the best interpretation? | show 🗑
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What is a frequent characteristic of anti-i? | show 🗑
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the test currently used to detect donors who are infected with the AIDS virus is: | show 🗑
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show | ABO and Rh typing only
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for plateletpheresis donors, the pretransfusion platelet count must be at least: | show 🗑
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a patient admitted to the trauma unit requires emergency release of Fresh Frozen Plasma (FFP). His blood donor card states that he is group AB, Rh-positive. What blood group of FFP should be issued? | show 🗑
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Refer to the data on page 74. Which clinical condition is consistant with the lab results shown? | show 🗑
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the mechanism that best explains hemolytic anemia due to penicillin is; | show 🗑
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Laboratory studies of maternal and cord blood yield the results listed on page 74. If exchange transfusion is necessary, the best choice of blood is: | show 🗑
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the blood sample of choice for the pretransfusion testing of neonates with HDN is: | show 🗑
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show | hypogammaglobulinemia due to advanced patient age
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A patient is typed as group O,Rh-pos & crossmatched w/ 6 units fo blood. At the indirect antiglobulin (IAT) phase of testing, both antibody screening cells & 2 crossmatched units are incompatible. What is the most likely cause of the incompatibility? | show 🗑
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Refer to the data on page 75. Consider the following ABO typing results: Additional testing was performed using serum: What should be done next? | show 🗑
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show | transplant candidates
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show | anti-P1a1
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show | IgA deficiency
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show | the indirect antiglobulin test
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show | c. 22-year-old college student who has a temperature of 99.2 degrees F and states that he feels well but is nervous about donating
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transfusion of plateletpheresis products from HLA-compatible donors is the preferred treatment for: | show 🗑
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show | to permit adequate screening for transfusion-acquired viral infectiona
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show | a warm autoantibody
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A 42-year-old female is undergoing surgery tomorrow 7 her physician requests that 4 units of RBCs be crossmatched. See page 77 for results. What is the most likely cause of the incompatibility of donor 1? | show 🗑
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show | weak subgroup of A with anti-A1
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A 14-year-old male trauma victim is in need of 3 units of RBDs. Refer to page 78 for the results obtained during pretransfusion testing. What is the FIRST step in resolving this problem? | show 🗑
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show | anti-HIV-1
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A commonly used screening method for anti-HIV-1 detection is: | show 🗑
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What red cell typings would most commonly be found in the black donor population? | show 🗑
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An individual's RBCs give the reactions listed on page 79 with Rh antisera. The most probable genotype of this individual is: | show 🗑
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A patient is typed with the results listed on page 79. the most probable reason for these findings is that the patient is group; | show 🗑
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the primary indication for granulocyte transfusion is: | show 🗑
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A patient in the immediate post-bone marrow transplant period has a hematocrit of 21%. The red cell product of choice for this patient would be: | show 🗑
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show | Dolichos biflorus
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a man suffering fron gastrointestinal bleeding has received 20 units of RBCs in the past 24 hours and is still oozing postoperatively. The results on page 80 were obtained. What blood product should be administered? | show 🗑
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Anti-I usually results in a positive direct antiglobulin test (DAT) because of: | show 🗑
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B lymphocytes are associated with: | show 🗑
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Plastic bog overwraps are recommended when thawing units of FFP in 37 degree C water baths because they prevent: | show 🗑
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A unit of RBCs expiring in 35 days is split into five small aliquots using a sterile pediatris quad set and a sterile connecting devise. Each aliquot must be labeled as expiring in: | show 🗑
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Refer to the chart on page 81. What is the best interpretation for the laboratory data given in the chart? | show 🗑
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A woman who was requested to be a sdirected donor has a mastectomy w/ radiotherapy for breast carcinoma 5 years ago. Currently, she is well and has a hemoglobin of 14 g/dL and a hematocrit of 41%. The blood bank should: | show 🗑
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show | jaundice
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show | multiple myeloma
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show | quarantine for Gram Stain and culture
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show | a directed donation given by a mother for her son
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The results listed on page 83 are moted for a unit of blood labeles group A, Rh-negative. What should be done next? | show 🗑
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A thchnologist typed 10 units for c antigen. All 10 units test c-negative after a 37 degree C incubation. The Technologist should: | show 🗑
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Leukocyte-reduced Red Blood Cells are ordered for a newly diagnosed bone marrow candidate. What is the best way to prepare this product? | show 🗑
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When Plateletsare stored on a rotator set on an open top, the ambient air temperature must be recorded: | show 🗑
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What test is most commonly used to demonstrate antibodies that have become attached to a patient's red cells in vivo? | show 🗑
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show | complement
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The minimum hemoglobin concentration in g/dL in a fingerstick from a male blood donor is: | show 🗑
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The purpose of testing with anti-A,B is to detect: | show 🗑
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show | the father is heterozygous Rh-positive
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In performing an antibody screening test and/or compatibility test, the use of a patient's specimen collected in an EDTA tube will: | show 🗑
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show | A handwritten band with patient's mane and hospital identification number is affixed to tha patient's leg.
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Rh-immune globulin is requested for an Rh-negative mother who has the following results: Mothers postpartum sample D=0, D control=0, Du=1+mixed field, Du control =0. What is the most likely explanation? | show 🗑
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show | collect a new sample and repeat the tests
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The following results are seen on a maternal postpartum sample: Aother's cells Rh=0, Rh control=0, Du =+mixed field, Du control=0. The most appropriate course of actionis to: | show 🗑
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The test results on page 86 were obtained on a patient sample. Tha anti-D used was a chemically modified reagent. The best interpretation is that: | show 🗑
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show | identify the cause of the agglutination
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show | anti-HCV
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show | the original date of the unsplit unit
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A group-B, Rh-negative patient has a positive DAT. What situation would occur? | show 🗑
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show | cryoprecipitated AHF
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show | group B, Rh-negative Whole Blood
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To qualify as a donor for autologous transfusion, a patient's hemoglobin should be at least: | show 🗑
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After checking the inventory, it was noted that there were no units on the shelf marked "May issue as uncrossmatched: For Emergency Only." What should the tech now place on this shelf? | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
dayzemai
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