The minimum haemoglobin concentration in a fingerstick from a male blood donor is:
a. 12.0 g/dL (120 g/L)
b. 12.5 g/dL (125 g/L)
c. 13.5 g/dL (13.5 g/L)
d. 15.0 g/dL (150 g/L) - ANSWER b. 12.5 g/dL (125 g/L)
All donors, regardless of sex, require a minimum hemoglobin of 12.5 g/dL (125 g/L). The
value must not be performed on an earlobe stick.
Which one of the following constitutes permanent rejection status of a donor?
a. a tattoo 5 months previously
b. recent close contact with a patient with viral hepatitis
c. 2 units of blood transfused 4 months previously
d. confirmed positive test for HBsAg 10 years previously - ANSWER d. confirmed positive
test for HBsAg 10 years previously
A positive rest for HbsAg at any time is an indefinite deferral.
A cause for permanent deferral of blood donation is:
a. diabetes
b. residence in an endemic malaria region
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,c. history of jaundice of uncertain cause
d. history of therapeutic rabies vaccine. - ANSWER c. history of jaundice of uncertain
cause
Jaundice is a sign of liver impairment, which might be due to HBV or HCV. Infection with HBV
and HCV is a cause for indefinite deferral.
Below are the results of the history obtained from a prospective female blood donor:
age: 16
temp: 99.0 degree F (37.2 C̊)
Hct: 36%
history: tetanus toxoid immunization 1 week previously
How many of the above results excludes this donor from giving blood for a routine transfu-
sion?
a. none
b. 1
c. 2
d. 3 - ANSWER b. 1
The Hct must be >38%. A donor may be 16 unless state law differs. Temperature must not
exceed 99.5 degrees F/37.5C̊, blood pressure must be <180mm Hg systolic and <100mm Hg
diastolic, pulse 50-100 unless an athlete (which can be lower). Toxoids and vaccines from
synthetic or killed sources have no deferral.
Prior to blood donation, the intended venipuncture site must be cleaned with a scrub solu-
tion containing:
2
, a. hypochlorite
b. isopropyl alcohol
c. 10% acetone
d. PVP iodine complex - ANSWER d. PVP iodine complex
The scrub must use iodine, eg, PVP iodine complex. Donors who are sensitive to iodine can
have the area cleaned with a preparation of 2% chlorhexidine and 70% isopropyl alcohol.
All donor blood testing must include:
a. complete Rh phenotyping
b. anti-CMV testing
c. direct antiglobulin test
d. serological test for syphilis - ANSWER d. serological test for syphilis
Testing for syphilis was the first mandated donor screening test for infectious disease and is
still part of donor screening.
During the preparation of Platelet Concentrates from Whole Blood, the blood should be:
a. cooled towards 6 C̊
b. cooled towards 20-24 C̊
c. warmed to 37 C̊
d. heated to 57 C̊ - ANSWER b. cooled towards 20-24 C̊
Platelets are prepared and stored at 20-24 C̊ for optimum function.
The western blot is a confirmatory test for the presence of:
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a. 12.0 g/dL (120 g/L)
b. 12.5 g/dL (125 g/L)
c. 13.5 g/dL (13.5 g/L)
d. 15.0 g/dL (150 g/L) - ANSWER b. 12.5 g/dL (125 g/L)
All donors, regardless of sex, require a minimum hemoglobin of 12.5 g/dL (125 g/L). The
value must not be performed on an earlobe stick.
Which one of the following constitutes permanent rejection status of a donor?
a. a tattoo 5 months previously
b. recent close contact with a patient with viral hepatitis
c. 2 units of blood transfused 4 months previously
d. confirmed positive test for HBsAg 10 years previously - ANSWER d. confirmed positive
test for HBsAg 10 years previously
A positive rest for HbsAg at any time is an indefinite deferral.
A cause for permanent deferral of blood donation is:
a. diabetes
b. residence in an endemic malaria region
1
,c. history of jaundice of uncertain cause
d. history of therapeutic rabies vaccine. - ANSWER c. history of jaundice of uncertain
cause
Jaundice is a sign of liver impairment, which might be due to HBV or HCV. Infection with HBV
and HCV is a cause for indefinite deferral.
Below are the results of the history obtained from a prospective female blood donor:
age: 16
temp: 99.0 degree F (37.2 C̊)
Hct: 36%
history: tetanus toxoid immunization 1 week previously
How many of the above results excludes this donor from giving blood for a routine transfu-
sion?
a. none
b. 1
c. 2
d. 3 - ANSWER b. 1
The Hct must be >38%. A donor may be 16 unless state law differs. Temperature must not
exceed 99.5 degrees F/37.5C̊, blood pressure must be <180mm Hg systolic and <100mm Hg
diastolic, pulse 50-100 unless an athlete (which can be lower). Toxoids and vaccines from
synthetic or killed sources have no deferral.
Prior to blood donation, the intended venipuncture site must be cleaned with a scrub solu-
tion containing:
2
, a. hypochlorite
b. isopropyl alcohol
c. 10% acetone
d. PVP iodine complex - ANSWER d. PVP iodine complex
The scrub must use iodine, eg, PVP iodine complex. Donors who are sensitive to iodine can
have the area cleaned with a preparation of 2% chlorhexidine and 70% isopropyl alcohol.
All donor blood testing must include:
a. complete Rh phenotyping
b. anti-CMV testing
c. direct antiglobulin test
d. serological test for syphilis - ANSWER d. serological test for syphilis
Testing for syphilis was the first mandated donor screening test for infectious disease and is
still part of donor screening.
During the preparation of Platelet Concentrates from Whole Blood, the blood should be:
a. cooled towards 6 C̊
b. cooled towards 20-24 C̊
c. warmed to 37 C̊
d. heated to 57 C̊ - ANSWER b. cooled towards 20-24 C̊
Platelets are prepared and stored at 20-24 C̊ for optimum function.
The western blot is a confirmatory test for the presence of:
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