AAB > Immunohematology > Flashcards

Immunohematology Flashcards

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1
Q

MultipleChoiceMultipleChoice

All of the following blood donors would be permanently deferred EXCEPT which one?

A. 75-year-old male who had acute hepatitis 20 years ago following surgery
B. 38-year-old male who received rabies vaccine after a dog bite 3 months ago
C. 19-year-old first-time donor who received human growth hormone 12 years ago
D. 24-year-old donor with a history of a positive test for hepatitis C from another blood center (whole)

A

B. 38-year-old male who received rabies vaccine after a dog bite 3 months ago

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2
Q

MultipleChoiceMultipleChoice

What is the interval between blood donations?

A. 6 weeks
B. 8 weeks
C. 12 weeks
D. 16 weeks platelet

A

B. 8 weeks

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3
Q

MultipleChoiceMultipleChoice

The oral temperature of a donor must not exceed which value?

A. 37.0°C
B. 37.5°C
C. 98.6°F
D. 99.0°F

A

B. 37.5°C

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4
Q

MultipleChoiceMultipleChoice

What is the minimum acceptable hemoglobin for blood donors?

A. 11.5 g/dL for autologous donors
B. 12.0 g/dL for female donors
C. 12.5 g/dL for allogeneic donors
D. 13.0 g/dL for male donors

A

C. 12.5 g/dL for allogeneic donors

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5
Q

MultipleChoiceMultipleChoice

What is the lowest acceptable hematocrit for allogenic blood donors?

A. 33%
B. 36%
C. 38%
D. 42%

A

C. 38%

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6
Q

MultipleChoiceMultipleChoice

What donor meets the requirements for age, pulse, weight, and blood pressure?

A. Age: 17, Pulse: 55, Weight(lbs): 105, BP: 120/80
B. Age: 32, Pulse: 60, Weight(lbs): 185, BP: 110/70
C. Age: 43, Pulse: 90, Weight(lbs): 275, BP: 185/90
D. Age: 65, Pulse: 105, Weight(lbs): 145, BP: 145/60

A

B. Age: 32, Pulse: 60, Weight(lbs): 185, BP: 110/70

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7
Q

MultipleChoiceMultipleChoice

How long must a pregnant woman be deferred?

A. 1 week postpartum
B. 4 weeks postpartum
C. 6 weeks postpartum
D. 8 weeks postpartum

A

C. 6 weeks postpartum

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8
Q

MultipleChoiceMultipleChoice

There is a 12-month deferment for each of the following donors EXCEPT which one?

A. Donor received a blood transfusion
B. Donor received a tattoo and body piercing
C. Donor had sex with a person with hepatitis
D. Donor received the hepatitis B vaccine.

A

D. Donor received the hepatitis B vaccine.

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9
Q

MultipleChoiceMultipleChoice

How long must a prospective donor with a history of malaria be deferred?

A. Permanently
B. 3 years after cessation of treatment
C. 12 months after cessation of treatment
D. No deferral

A

B. 3 years after cessation of treatment

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10
Q

MultipleChoiceMultipleChoice

A lab tech who has a positive tuberculin skin test wants to donate blood. If he/she meets all the other donor criteria, how long is the deferral?

A. No deferral as long as there is no other abnormality
B. Temporary deferral for 12 months after completion of therapy
C. Temporary deferral for 3 years after completion of treatment
D. Permanent deferral

A

A. No deferral as long as there is no other abnormality

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11
Q

MultipleChoiceMultipleChoice

All of the following are causes of permanent donor deferral EXCEPT which one?

A. Confirmed HIV positive
B. Family history of Creutzfeldt-Jakob disease
C. Intravenous drug user
D. Incarcerated individuals

A

D. Incarcerated individuals

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12
Q

MultipleChoiceMultipleChoice

What is the length of deferral for symptom-free donors immunized with oral polio, measles (rubeola), or mumps vaccine?

A. 2 weeks
B. 4 weeks
C. 6 weeks
D. 12 months

A

A. 2 weeks

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13
Q

MultipleChoiceMultipleChoice

Current testing on all donor blood must include testing for which of the following?

A. Direct antiglobulin test
B. Complete Rh phenotyping
C. Serological test for syphilis
D. Serological test for cytomegalovirus

A

C. Serological test for syphilis

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14
Q

MultipleChoiceMultipleChoice

Which one of the following tests is not required by AABB and is therefore optional during donor blood testing?

A. RPR
B. Anti-HIV
C. Anti-HTLV
D. Anti-HBc

A

D. Anti-HBc

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15
Q

MultipleChoiceMultipleChoice

What is a commonly used screening method for the detection of HIV-1 antibodies?

A. Latex agglutination
B. Radioimmunoassay
C. Nucleic acid techniques
D. Enzyme-linked immunosorbent assays

A

D. Enzyme-linked immunosorbent assays

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16
Q

MultipleChoiceMultipleChoice

Currently required viral hepatitis marker tests include all of the following EXCEPT which one?

A. Anti-HAV
B. Anti- HCV
C. Anti-HBc
D. HBsAg

A

A. Anti-HAV

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17
Q

MultipleChoiceMultipleChoice

When color coding is used for donor blood labels, what color is group A?

A. Yellow
B. Pink
C. Blue
D. Black/gray/white

A

A. Yellow

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18
Q

MultipleChoiceMultipleChoice

Which infectious agent is least likely to be transmitted by a blood transfusion?

A. HAV
B. HBC
C. HCV
D. HIV

A

A. HAV

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19
Q

MultipleChoiceMultipleChoice

In the very early acute phase of hepatitis, which one of the following positive tests would be indicative of onset of a viremic state?

A. HBsAg
B. HBeAg
C. Anti-HBc
D. Anti-HBs

A

A. HBsAg

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20
Q

MultipleChoiceMultipleChoice

During the ‘window period,’ what is the only marker of HBV infection?

A. HBsAg
B. HBeAg
C. Anti-HBc
D. Anti-HBs

21
Q

MultipleChoiceMultipleChoice

What is the minimum length of time that the patient’s serum must remain positive for HBsAg before the individual is referred to as a chronic carrier?

A. 3 months
B. 6 months
C. 1 year
D. 3 years

22
Q

MultipleChoiceMultipleChoice

Which viral agent causes the majority of cases of transfusion-associated hepatitis?

A. HAV
B. HBV
C. HCV
D. HDV

23
Q

MultipleChoiceMultipleChoice

All of the following are required viral marker testing for the human immunodeficiency virus EXCEPT which one?

A. Anti-HIV-1
B. Anti-HIV-2
C. HIV-1 p24 antigen
D. Anti-HTLV-I/II

Study These Flashcards
A

C. HIV-1 p24 antigen

24
Q

MultipleChoiceMultipleChoice

Which virus can be deadly to immunocompromised patients or premature infants?

A. CMV
B. HTLV-I
C. HTLV-II
D. JC virus

25
# *MultipleChoice**MultipleChoice*** All of the following organisms have been implicated in bacterial contamination of donor blood products EXCEPT which one? ## Footnote A. Yersinia enterocolitica B. Citrobacter freundit C. Pseudomonas puttda D. Escherichia coli
D. Escherichia coli
26
# *MultipleChoice**MultipleChoice*** Which one of the following parasites has NOT been transmitted by blood transfusion? ## Footnote A. Babesia B. Naegleria C. Plasmodium D. Trypanosoma
B. Naegleria
27
# *MultipleChoice**MultipleChoice*** What is the acceptable temperature range for a blood bank refrigerator? ## Footnote A. 1°C-6°C B. 2°C-8°C C. 1°C-10°C D. 20°C-24°C
A. 1°C-6°C
28
# *MultipleChoice**MultipleChoice*** According to FDA regulations, if blood is to be transported, then what temperature must be maintained during transportation? ## Footnote A. 1°C-6°C B. 2°C-8°C C. 1°C-10°C D. 20°C-24°C
C. 1°C-10°C
29
# *MultipleChoice**MultipleChoice*** What is the expiration date of red blood cells preserved with CPDA-1? ## Footnote A. 21 days B. 28 days C. 35 days D. 42 days
C. 35 days
30
# *MultipleChoice**MultipleChoice*** What is the expiration date of red blood cells preserved with ADSOL? ## Footnote A. 21 days B. 28 days C. 35 days D. 42 days
D. 42 days
31
# *MultipleChoice**MultipleChoice*** What is the shelf life of cryoprecipitated antihemophilic factor when stored at -18°C or lower? ## Footnote A. 1 year B. 5 years C. 7 years D. 10 years
A. 1 year
32
# *MultipleChoice**MultipleChoice*** What is the shelf life of fresh frozen plasma that is stored at -18°C or lower? ## Footnote A. 1 year B. 5 years C. 7 years D. 10 years
A. 1 year
33
# *MultipleChoice**MultipleChoice*** What is the optimum temperature for thawing fresh frozen plasma? ## Footnote A. 1℃ - 6℃ B. 2℃ - 8℃ C. 20℃ - 24℃ D. 30°C - 37°C
D. 30°C - 37°C
34
# *MultipleChoice**MultipleChoice*** What is the shelf life of platelet concentrates? ## Footnote A. 3 days at 1°C - 6°C with constant agitation B. 3 days at 20°C - 24°C without constant agitation C. 5 days at 1°C - 6°C with constant agitation D. 5 days at 20°C - 24°C with constant agitation
D. 5 days at 20°C - 24°C with constant agitation
35
# *MultipleChoice**MultipleChoice*** If the hermetic seal on a unit of packed red blood cells has been broken, how soon must the product be used if stored in the blood bank refrigerator? ## Footnote A. 6 hours B. 8 hours C. 12 hours D. 24 hours
D. 24 hours
36
# *MultipleChoice**MultipleChoice*** Which biochemical change does NOT occur in stored blood? ## Footnote A. Plasma pH decreases B. Plasma K+ decreases C. Plasma Na+ decreases D. 2,3-DPG decreases
B. Plasma K+ decreases
37
# *MultipleChoice**MultipleChoice*** Which one of the following is NOT a labeling requirement of specimens for crossmatching? ## Footnote A. Collection date B. Patient's name C. Hospital number D. Ordering physician
D. Ordering physician
38
# *MultipleChoice**MultipleChoice*** All of the following statements concerning autologous transfusions are true EXCEPT which one? ## Footnote A. They prevent alloimmunization B. They are the safest possible transfusions C. There are no donor blood requirements for them D. They eliminate the risk of transfusion-transmitted infections
C. There are no donor blood requirements for them
39
# *MultipleChoice**MultipleChoice*** In which autologous procedure is blood drawn and stored before the anticipated elective surgery? ## Footnote A. Preoperative collection B. Intraoperative hemodilution C. Intraoperative salvage D. Postoperative salvage
A. Preoperative collection
40
# *MultipleChoice**MultipleChoice*** For autologous blood donations, blood should not be drawn from the donor-patient within how many hours before the anticipated operation or transfusion? ## Footnote A. 24 hours B. 48 hours C. 72 hours D. 96 hours
C. 72 hours
41
# *MultipleChoice**MultipleChoice*** Which statement concerning the criteria for presurgical autologous donation is true? ## Footnote A. Donor must be at least 17 years old B. Donor hemoglobin must be at least 11.0 g/dL C. Donor must be a minimum of 110 pounds D. Donor must start iron therapy at least 3 days before surgery
B. Donor hemoglobin must be at least 11.0 g/dL
42
# *MultipleChoice**MultipleChoice*** Which of the following pretransfusion tests must be determined for an autologous transfusion recipient? ## Footnote A. ABO/Rh testing B. Antibody screen C. Hepatitis testing D. Compatibility testing
A. ABO/Rh testing
43
# *MultipleChoice**MultipleChoice*** What procedure involves the withdrawal of blood to obtain plasma and subsequent reinfusion of the red blood cells into the donor? ## Footnote A. Hemapheresis B. Leukapheresis C. Plasmapheresis D. Plateletpheresis
C. Plasmapheresis
44
# *MultipleChoice**MultipleChoice*** Collection of plasma by pheresis more often than once every 8 weeks necessitates that which analyte(s) is(are) monitored at 4-month intervals? ## Footnote A. Glucose B. Cholesterol C. Electrolytes D. Total protein
D. Total protein
45
# *MultipleChoice**MultipleChoice*** After donating a unit of whole blood, how long must a donor wait before he/she is eligible for a plateletpheresis? ## Footnote A. 48 hours B. 72 hours C. 6 weeks D. 8 weeks
B. 72 hours
46
# *MultipleChoice**MultipleChoice*** How long must a plasmapheresis donor wait before donating whole blood? ## Footnote A. 48 hours B. 72 hours C. 6 weeks D. 8 weeks
A. 48 hours
47
# *MultipleChoice**MultipleChoice*** What is the separation of white blood cells by reversible filtration or centrifugation called? ## Footnote A. Hemapheresis B. Leukapheresis C. Plasmapheresis D. Plateletpheresis
B. Leukapheresis
48
# *MultipleChoice**MultipleChoice*** Different genes that occupy a specific locus of a chromosome are called: ## Footnote A. Genes B. Alleles C. Haplotype D. Polymorphic
B. Alleles
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