SBB ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS
(ALREADY GRADED A+)
A physician has ordered a 2 unit RBC transfusion on an outpatient. When the patient
arrives, the patient's hemoglobin is 12 gm/dL. What is the most appropriate action? -
Answer-Inform your medical director and allow him/her to contact the patient's physcian.
Performing a blood utilization review at the end of the quarter, you note that one
physician's C/T ration is high. You discuss this with your medical director and he/she
has asked you to draft a letter to the ordering physician. This is an example of what kind
of review? - Answer-retrospective
lookbacks represent a chance to - Answer-**identify** risky components and **notify**
at risk donors. Lookback programs help mitigate blood born pathogen transmission
rates and provide a chance for infected recipients to seek medical attention.
A blood donor states that he is recently divorced because he found out that his wife was
working as a prostitute. You should: - Answer-Defer the donor for 12 months from the
date of his last sexual contact with his ex-wife
normal platelet count - Answer-150,000-400,000
Which viral agent listed below has the highest risk of being transmitted through blood
transfusion? - Answer-HIV-1
Which parties must be notified and given the test results if an autologous donor unit
tested confirmed positive for Anti-HIV1 ? - Answer-The patient's physician
Quality Control is performed on Cryoprecipitated AHF. To perform the QC, 10units of
CRYO are pooled, and the fibrinogen and Factor VIII are assayed. The results are as
follows:Total Factor VIII Activity = 910 IUTotal Fibrinogen =2000 mgAccording to AABB,
is this QC acceptable? - Answer-Yes
What is the defferal period for a potential donor who obtained a tattoo - Answer-12 mos
A potential donor states that he had malaria, and now has been asymptomatic for 2
years. Is this an acceptable donor? - Answer-No-deferred for 3 years after he is
asymptomatic
,A 35-year-old female is being interviewed for suitability as a whole blood donor, and
states that she ingested aspirin 4 days ago. What should the phlebotomist do? -
Answer-Accept the donor and make platelets as usual. No special labeling is required
Females who have had recent pregnancy are deferred for - Answer-6 weeks from the
end of the pregnancy
45-year-old male attempts to donate as an allogeneic donor and states that he donated
a unit of double red cells by apheresis 8 weeks ago. What should the phlebotomist do -
Answer-Defer the donor for 8 more weeks
You are a phlebotomist and notice that during the whole blood donation, your whole
blood donor is pale, sweating, and appears nervous. According to the AABB, which of
the following is the most appropriate action to take? - Answer-Stop the Donation
A person who takes a week-long vacation to a country where malaria is present is
deferred from donating blood for how long? - Answer-no defferal unless in a high risk
area for more than 24 hours
According to Dr. Mary Townsend in this week's podcast, higher concern with attenuated
vaccines are primarily because - Answer-these types of vaccines are living organisms
which have lost potency
The CD4 molecule on T helper cells is a receptor for - Answer-HIV-1/2
Which of the following organisms is a transfusion recipient most likely to be exposed to?
- Answer-staphylococci skin contaminants
The least likely chance of transmitting Human T cell Lymphotropic viruses types I/II
(HTLV-I/II) is by - Answer-thawed plasma transfusion
because HTLV is cell associated, leukocyte reduction likely reduces infectivity;
In a Hepatitis B infection, what is the first viral marker to appear - Answer-HBsAg
In the typical ELISA test for anti-HIV 1/2, what immunological component is found in the
conjugate reagent? - Answer-Anti-Human IgG
Which test was considered a surrogate test for HIV during the emergence of the HIV
crisis? - Answer-Hepatitis B core antibody
A donor unit tests repeat reactive for anti-HBc on two consecutive donations. The blood
center does not perform confirmatory testing on this donor. The HBV-DNA NAT test was
negative. - Answer-The components are discarded and the donor is permanently
deferred
, Which viral marker assay below detects for a past infection of Hepatitis B? That is to
say that the donor had a hepatitis B infection in the past but is not currently infectious -
Answer-anti-HBc
A 25-year-old donor lives in Northern Wisconsin and goes to a blood center near his
home. He denies risk behavior for TTI and has not traveled out of the country.
Which transfusion transmitted infection are they at risk for passing to a patient? -
Answer-Babesiosis
positive-HBsAg
negative-Anti-HBsAg
positive-total Anti-HBcAg
negative-IgM anti-HBcAg - Answer-Chronically infected
HBsAg - Answer-Marker of current infection
Anti-HBs - Answer-Marker of immunity
Anti-HBc total - Answer-a nonspecific marker of acute infection
IgM anti-HBc - Answer-Recent infection
A donor is tested for viral markers and the intial EIA screening test for anti-HIV-1/2 is
reactive. Which choice below represents the next step that is taken? - Answer-Repeat
the EIA test in duplicate
Which of the following is used as a confirmatory test when the HIV ELISA assay is
repeat reactive? - Answer-Western Blot
The rationale for deglycerolizing frozen RBCs with extensive washing is - Answer-
Glycerol can cause hemolysis
Positive with Glycine soja - Answer-T, Tn, Cad
Positive with Arachi hypogaea - Answer-T, Th, Tk
Positive with Dolichos biflorus - Answer-Tn and Cad
Positive with Salvia sclarea - Answer-Tn
Positive with Salvia horminum - Answer-Tn and Cad
Positive with Griffonia simplicifolia - Answer-Tk
Positive with cord serum - Answer-none
CORRECT DETAILED ANSWERS
(ALREADY GRADED A+)
A physician has ordered a 2 unit RBC transfusion on an outpatient. When the patient
arrives, the patient's hemoglobin is 12 gm/dL. What is the most appropriate action? -
Answer-Inform your medical director and allow him/her to contact the patient's physcian.
Performing a blood utilization review at the end of the quarter, you note that one
physician's C/T ration is high. You discuss this with your medical director and he/she
has asked you to draft a letter to the ordering physician. This is an example of what kind
of review? - Answer-retrospective
lookbacks represent a chance to - Answer-**identify** risky components and **notify**
at risk donors. Lookback programs help mitigate blood born pathogen transmission
rates and provide a chance for infected recipients to seek medical attention.
A blood donor states that he is recently divorced because he found out that his wife was
working as a prostitute. You should: - Answer-Defer the donor for 12 months from the
date of his last sexual contact with his ex-wife
normal platelet count - Answer-150,000-400,000
Which viral agent listed below has the highest risk of being transmitted through blood
transfusion? - Answer-HIV-1
Which parties must be notified and given the test results if an autologous donor unit
tested confirmed positive for Anti-HIV1 ? - Answer-The patient's physician
Quality Control is performed on Cryoprecipitated AHF. To perform the QC, 10units of
CRYO are pooled, and the fibrinogen and Factor VIII are assayed. The results are as
follows:Total Factor VIII Activity = 910 IUTotal Fibrinogen =2000 mgAccording to AABB,
is this QC acceptable? - Answer-Yes
What is the defferal period for a potential donor who obtained a tattoo - Answer-12 mos
A potential donor states that he had malaria, and now has been asymptomatic for 2
years. Is this an acceptable donor? - Answer-No-deferred for 3 years after he is
asymptomatic
,A 35-year-old female is being interviewed for suitability as a whole blood donor, and
states that she ingested aspirin 4 days ago. What should the phlebotomist do? -
Answer-Accept the donor and make platelets as usual. No special labeling is required
Females who have had recent pregnancy are deferred for - Answer-6 weeks from the
end of the pregnancy
45-year-old male attempts to donate as an allogeneic donor and states that he donated
a unit of double red cells by apheresis 8 weeks ago. What should the phlebotomist do -
Answer-Defer the donor for 8 more weeks
You are a phlebotomist and notice that during the whole blood donation, your whole
blood donor is pale, sweating, and appears nervous. According to the AABB, which of
the following is the most appropriate action to take? - Answer-Stop the Donation
A person who takes a week-long vacation to a country where malaria is present is
deferred from donating blood for how long? - Answer-no defferal unless in a high risk
area for more than 24 hours
According to Dr. Mary Townsend in this week's podcast, higher concern with attenuated
vaccines are primarily because - Answer-these types of vaccines are living organisms
which have lost potency
The CD4 molecule on T helper cells is a receptor for - Answer-HIV-1/2
Which of the following organisms is a transfusion recipient most likely to be exposed to?
- Answer-staphylococci skin contaminants
The least likely chance of transmitting Human T cell Lymphotropic viruses types I/II
(HTLV-I/II) is by - Answer-thawed plasma transfusion
because HTLV is cell associated, leukocyte reduction likely reduces infectivity;
In a Hepatitis B infection, what is the first viral marker to appear - Answer-HBsAg
In the typical ELISA test for anti-HIV 1/2, what immunological component is found in the
conjugate reagent? - Answer-Anti-Human IgG
Which test was considered a surrogate test for HIV during the emergence of the HIV
crisis? - Answer-Hepatitis B core antibody
A donor unit tests repeat reactive for anti-HBc on two consecutive donations. The blood
center does not perform confirmatory testing on this donor. The HBV-DNA NAT test was
negative. - Answer-The components are discarded and the donor is permanently
deferred
, Which viral marker assay below detects for a past infection of Hepatitis B? That is to
say that the donor had a hepatitis B infection in the past but is not currently infectious -
Answer-anti-HBc
A 25-year-old donor lives in Northern Wisconsin and goes to a blood center near his
home. He denies risk behavior for TTI and has not traveled out of the country.
Which transfusion transmitted infection are they at risk for passing to a patient? -
Answer-Babesiosis
positive-HBsAg
negative-Anti-HBsAg
positive-total Anti-HBcAg
negative-IgM anti-HBcAg - Answer-Chronically infected
HBsAg - Answer-Marker of current infection
Anti-HBs - Answer-Marker of immunity
Anti-HBc total - Answer-a nonspecific marker of acute infection
IgM anti-HBc - Answer-Recent infection
A donor is tested for viral markers and the intial EIA screening test for anti-HIV-1/2 is
reactive. Which choice below represents the next step that is taken? - Answer-Repeat
the EIA test in duplicate
Which of the following is used as a confirmatory test when the HIV ELISA assay is
repeat reactive? - Answer-Western Blot
The rationale for deglycerolizing frozen RBCs with extensive washing is - Answer-
Glycerol can cause hemolysis
Positive with Glycine soja - Answer-T, Tn, Cad
Positive with Arachi hypogaea - Answer-T, Th, Tk
Positive with Dolichos biflorus - Answer-Tn and Cad
Positive with Salvia sclarea - Answer-Tn
Positive with Salvia horminum - Answer-Tn and Cad
Positive with Griffonia simplicifolia - Answer-Tk
Positive with cord serum - Answer-none
