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Agglutination only with Anti-B typing serum indicates the blood is group
Which of the following correctly identifies the antigens that would be found on an RBC in an individual has the H, Le and Se genes?
If a child is group B, and the mother is group A, which of the following may be excluded as possible groups of the father?
Individuals with the following blood group have both anti-A and anti-B antibodies in hte serum
Bombay blood
The ABO blood group system was discovered by
Agglutination with both anti-A and anti-B typing serums indicates the blood is group
Blood containing neither antigens A nor B is which of the following groups?
Which of the following is NOT a technique used to enhance ABO agglutination reactions?
A group AB parent mated with a group O parent. Which of the following are possible in the offspring?
Both parents are group AB. Which of the following are possible in the offspring?
Mrs. Jones’ genotype is AA. Mr. Jones’ genotype is BO. By use of a punnett square, determine the possible ABO genotypes of their children.
A2 individuals
The frequency of anti-A1 is highest in type
Which of the responses best interprets/explains these blood typing results? Anti-A 4+ Anti-B 4+ Anti-A1 0 a1 cells 2+ b cells 0
When two allelic genes are alike, the individual is said to be
The observable appearance of an object is known as the
Immunohematology tests utilize
How many ABO phenotypes exist? How many ABO genortypes exist?
The cell type Rh2 corresponds to
What is the Wiener allele that corresponds to CDe?
What is the Wiener allele that corresponds to cDE?
What is the Wiener allele that corresponds to cDe?
What is the Wiener allele that corresponds to CDE?
What is the Wiener allele that corresponds to cde?
What is the Wiener allele that corresponds to CdE?
Based on the following reactions, what is this person’s most probable genotype? Antisera Anti-D + Anti-C 0 Anti-E + Anti-c + Anti-e 0
When an Rh gene on one chromosome affects the action of another Rh gene on the same chromosome, in terms of increased or decreased antigen production, it is referred to as
Which of the Rh system antigens in most antigenic, second only to D?
According to the current theory of inheritance for the Rh system, how many genes are involved in the inheritance of Cc, D and Ee antigens?
Which Rh antigen is most antigenic?
A person of the genotype rr could potentially produce antibodies of the following specificity:
Which of the following is NOT true of the Rh control?
In an emergency situation, Rh-negative red cells are transfused into an Rh positive person of the genotype CDe/CDe. The first anitbody MOST LIKELY to develop is
A patient’s serum reacts 2+ at the immediate spin phase with 3 of 10 panel cells. The reactions disappeared floowing incubation at 37 degrees C and were negative at AHG. The antibody most likely responsible is
A high titer low avidity antibody (HTLA antibody is
What is the optimum temperature or mode of reactivity for Anti-A?
What is the optimum temperature or mode of reactivity of Anti-Leb?
What is the optimum temperature or mode of reactivity of Anti-K?
What is the optimum temperature or mode of reactivity of Anti-S?
What is the optimum temperature or mode of reactivity of Anti-Fya?
What is the optimum temperature or mode of reactivity of Anti-M?
The Ii antigen status of newborn cord blood erythrocytes is
Which of these is the most appropriate characteristic(s of anti-K (anti-K1?
What is the typical class of Anti-Lea?
What is the typical class of Anti-Leb?
What is the typical class of Anti-M?
What is the typical class of Anti-I?
What is the typical class of Anti-K (anti-K1?
What is the typical class of Anti-Kidd?
Which of the following is a characteristic of anti-I?
Which of the following is a characteristic of anti-i?
Which of the following antibodies react stronger with enzyme treated cells?
Which of the following antibodies are those whose reactions with corresponding antigens are destroyed with enzyme treated cells?
Which of the following antigens exhibits dosage? 1. M, N, S, s 2. Kidd 3. Duffy 4. Rh (except D
If an antibody panel displays variable strength reactions, which of the following should be considered? 1. Multiple antibodies 2. Dosage effect 3. An antibody directed toward an antigen that has variable strength among donors 4. A drug-related antibody 5. A typical cold-reacting antibody
Anti-human globulin is prepared by
One washes the cells for an anti-human globulin test to
Which of the following might cause a false negative antiglobulin test? (IAT
In which antiglobulin procedure are check cells added to all negative reactions?
In which antiglobulin procedure is the first step addition of AHG to washed cells?
In which antiglobulin procedure does a washing step remove excess antibody not attached to cells?
Which antiglobulin procedure is a test to detect in vivo sensitization?
Which antiglobulin procedure is a test to detect antigen-antibody reactions in vitro?
A positive DAT can be seen in all EXCEPT which of the following conditions?
Which of the following statements about gel testing is FALSE?
Which of the following statements about solid phase immunohematology testing is FALSE?
The major crossmatch consists of a mixture of
The primary purpose(s of the major crossmatch is(are 1. Avoid inadvertent transfusion of ABO-incompatible blood 2. Avoid inadvertent transfusion of Rh-positive blood to an Rh-negative person 3. Demonstrate previously undetected alloantibodies 4. Demonstrate previously undetected autoantibodies 5. Detect a drug-induced hemolytic anemia
The type and screen protocol consists of 1. ABO grouping 2. Rh typing 3. alloantibody screening 4. HIV screening 5. HbsAg screening
If a major crossmatch is incompatible at room temperature, but the alloantibody screen and autocontrol are both negative, the problem can be the result of
Which of the following is NOT a potential cause of a false positive direct antiglobulin test?
Which of the following is NOT a potential cause of a false negative direct antiglobulin test?
A positive direct antiglobulin test (DAT as a result of drugs can be caused by a(n ______ mechanism.
Pre-transfusion testing on a patient reveals a group A positive with a negative antibody screen. Previous blood bank records indicate an anti-E was detected eight years ago. Units suitable for transfusion are
Mixed-field agglutination at the antihuman globulin phase of a crossmatch may be attributed to
What typing discrepancy problem could occure in a patient with Hypogammaglobulinemia?
What typing discrepancy problem could occur in a patient with rouleaux?
What typing discrepancy problem could occur in a patient with subgroups of A?
A 14-year old male trauma victim is in need of three units of RBCs. The following results were obtained during pre-transfusion testing: Screening Cell I: IS 0 37 0 IAT 0 Screening Cell II: IS 0 37 0 IAT 0 Autocontrol: IS 0 37 0 IAT 0 Crossmatch: Donor 1: IS 0 37 0 IAT 0 Donor 2: IS 0 37 0 IAT + Donor 3: IS 0 37 0 IAT 0 What is the FIRST step in resolving this problem?
A 37 year old female with systemic lupus erythematosus (SLE is admitted with anemia. Blood samples are received with a crossmatch request for 4 units of RBCs. The patient is group B, Rh negative. The following resultus were obtained in pre-transfusion testing: SCI: IS 0 37 0 IAT 3+ SCII: IS 0 37 0 IAT 3+ Autocontrol: IS 0 37 0 IAT 3+ The most probable cause of these results is:
A 42 year old female is undergoing surgery tomorrow and her physician requests that 4 units of RBCs be crossmatched. The lab obtained the following results: SCI: IS 4+ 37 1+ IAT +/- SCII: IS 0 37 0 IAT 0 Autocontrol: IS 0 37 0 IAT 0 Crossmatch: Donor 1: IS 4+ 37 1+ IAT +/- Donor 2, 3, 4: IS 0 37 0 IAT 0 What is the most likely cause of the incompatibility of donor 1?
In hemolytic disease of the newborn, the mother’s ____ is directed against fetal _______.
The antibody class implicated in hemolytic disease of the newborn is
The most severe form of hemolytic disease of the newborn is associated with
Production of maternal antibodies depends on all of the following factors EXCEPT
The purpose of the rosette test and the Kleihauer-Betke test is to detect
The most frequent cause of ABO hemolytic disease of the newborn is
Rh immune globulin provides _________ protection against fetal D antigen
Which of the following does NOT partially meet the criteria for postpartum administrationi of Rh immune globulin?
Autoimmune hemolytic anemia can be due to
An intravascular hemolytic transfusion reaction is most commonly due to
The most frequent cause of an acute extravascular hemolytic transfusion reaction is
Fever and chills are the most common symptoms of which type of transfusion reaction?
The most common type of transfusion reaction is
When investigating a hemolytic transfusion reaction, which of the following tests should be performed on the pre and post samples?
Characteristics of a delayed hemolytic transfusion reaction include
Pulmonary edema, hypotension, chills and fever are symptoms of which of the following transfusion reactions?
Hives and itching are symptoms or which of the following transfusion reactions?
A1 lectin prepared from the seeds of Dolichos biflorus will react with
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