MLS Program Comprehensive Exam with verified solutions

MLS Program Comprehensive Exam
with verified solutions

What antibody is most associated with delayed hemolytic transfusion
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reactions? - correct answer ✔Anti-Jka
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What antibody is associated with Mycoplasma pneumonia? - correct answer
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✔Anti-I


What class of antibodies cause extravascular hemolysis from sequestration
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by spleen? - correct answer ✔IgG
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Enzyme panel will not react with which antibodes? - correct answer ✔Duffy
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(Fya or Fyb)
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What can cause a mother to have a low titer anti-D? - correct answer ✔RhIg
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at 28 weeks
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(T/F) Blood from mom to child must be irradiated. - correct answer ✔True
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What kind of errors can room temp cross match detect? - correct answer
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✔ABO


What is the main reason premature infants need transfusions? - correct
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answer ✔Blood loss from lab tests (aka iatrogenic blood loss)
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,What type of positive control should be used when phenotyping? - correct
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answer ✔Heterozyous
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What could make the auto control positive? - correct answer ✔Rouleaux or
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cold agglutinin
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How would you correct rouleaux? - correct answer ✔Saline replacement
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How would you fix cold agglutinin results? - correct answer ✔Prewarm
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Cryoprecipitate is used today mostly to replace what? - correct answer
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✔Fibrinogen


What type of plasma can an AB = patient receive? - correct answer ✔only
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AB


What are the requirements for intrauterine transfusions? - correct answer
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✔Fresh, O neg, CMV neg, irradiated, collected with CPDA
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When is FFP used? - correct answer ✔When PT and PTT are prolonged
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What temperature do Lewis antibodies react? - correct answer ✔RT and
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sometimes 37 n

, What affect can Lewis antibodies have on samples? - correct answer ✔Can
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cause in vitro hemolysis
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How long would a sexual partner of an IV drug user be deferred from
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donating? - correct answer ✔One year
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What can make the Rh control positive when doing a weak D test? - correct
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answer ✔Positive DAT
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What medication does PT monitor? - correct answer ✔Coumadin (Warfarin)
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Protein C deficiency causes what? - correct answer ✔Thrombosis
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What factor deficiency causes thrombosis instead of bleeding? - correct
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answer ✔XII n




What parameter does a cold agglutinin NOT affect? - correct answer
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✔Hemoglobin


What will the cells of an aged sample look like? - correct answer ✔crenated
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red cells and vacuoles in white cells
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What two RBC morphologies will lower a sed rate? - correct answer ✔Sickle
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cells and spherocytes
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