ASCP Blood bank ACTUAL UPDATED
Exam Questions and CORRECT Answers
The minimum hemoglobin concentration in a finger stick from a male blood donor is -
CORRECT ANSWER - 12.5 g/dL- all donors no matter the sex
A cause for permanent deferral of blood donation is - CORRECT ANSWER - History of
jaundice of uncertain cause- could be a from HBV or HCV and infection with either is a cause of
indefinite deferral
Which of the following prospective donors would be accepted for donation - CORRECT
ANSWER - A college student who's temperature is 99.2F and states that he feels well, but
is nervous about donating- temp cannot be over 99.5F
Which one of the following constitutes permanent rejection status of a donor - CORRECT
ANSWER - A confirmed positive HBsAg 10 years previously- a positive HBsAg at any
time is an indefinite deferral
According to AABB standards, which of the following donors may be accepted as a blood donor
- CORRECT ANSWER - Spontaneous abortion at 2 months of pregnancy, 3 months
previously- as long as she has not been pregnant in the previous 6 weeks
Below are the results of the history obtained from a prospective female blood donor:
Age 16
Temp 99.0F or 37.2C
Hct 36%
History tetanus toxoid immunization 1 week previously
How many of the above results excludes this donor from giving blood for a routine transfusion? -
CORRECT ANSWER - 1-Hct must be > 38%, temp must be <99.5F, age can be 16 unless
the law states otherwise, BP <180/100, pulse must be 50-100 unless an athlete, toxoids and
vaccines from synthetic or killed sources have no deferral
,For apheresis donors who donate platelets more frequently than every 4 weeks, a platelet count
must be performed prior to the procedure and be at least - CORRECT ANSWER - 150 x
10^3/ uL (for frequent repeat donors)- a platelet count is not required prior to the first donation
or if the interval between donations is at least 4 weeks
Prior to blood donation, the intended venipuncture site must be cleaned with a scrub solution
containing - CORRECT ANSWER - PVP iodine complex- if the patient is allergic to
iodine they can use a preparation of 2% chlorohexidine and 70% isopropyl alcohol
All donor testing must include - CORRECT ANSWER - Serological test for syphilis- First
mandated donor screening test for infectious disease
During the preparation of platelet concentrates from whole blood, the blood should be -
CORRECT ANSWER - Cooled towards 20-24C- platelets are prepared and stored at this
temp for optimum function
The most common cause of post-trasfusion hepatitis can be detected in donors by testing for -
CORRECT ANSWER - HBsAg- the most common post-transfusion hepatitis is HBV.
HBsAg is required for detection of acute or chronic HBV
The western blot is a confirmatory test for the presence of - CORRECT ANSWER - anti-
HIV 1
The test that is currently used to detect donors who are infected with the AIDS virus is -
CORRECT ANSWER - anti-HIV 1 & 2
A commonly used screening method for anti-HIV-1 detection is - CORRECT ANSWER -
ELISA
Rejuvenation of a unit of RBC is a method used to - CORRECT ANSWER - restore 2,3-
DPG and ATP to normal levels
, A unit of packed cells is split into 2 aliquots under closed sterile conditions at 8 AM. The
expiration time for each aliquot is now - CORRECT ANSWER - The original date of the
unsplit unit- sterile docking devices allow entry into donor units without affecting the expiration
date of the product
A unit of RBC expiring in 35 days is split into 5 small aliquots using a sterile pediatric quad set
and a sterile connecting device. Each aliquot must be labeled as expiring in - CORRECT
ANSWER - 35 days- Sterile docking devices allow entry into donor units without
affecting the expiration date of the product
When platelets are stored on a rotator set on an open bench top, the ambient air temperature must
be recorded - CORRECT ANSWER - Every 4 hours- if the storage devices do not have an
automated temperature recording
Which of the following is the correct storage temp for the component listed?
Cryo AHF 4C
FFP -20C
RBC, frozen -40
Platelets 37C - CORRECT ANSWER - FFP @ -20
FFP is stored at -18C or below for 12 months
A unit of RBC is issued at 9AM. at 9:10AM the unit is returned to the blood bank. The container
has NOT been entered, but the unit has NOT been refrigerated during this time span. The best
course of action for the technologist is to - CORRECT ANSWER - Record the return and
place the unit back into inventory
1. it has not been entered.
2. at least1 sealed segment is attached to the container
3. visible inspection of the unit is satisfactory and documented
4. the unit the unit has been maintained at the appropriate temperature
Exam Questions and CORRECT Answers
The minimum hemoglobin concentration in a finger stick from a male blood donor is -
CORRECT ANSWER - 12.5 g/dL- all donors no matter the sex
A cause for permanent deferral of blood donation is - CORRECT ANSWER - History of
jaundice of uncertain cause- could be a from HBV or HCV and infection with either is a cause of
indefinite deferral
Which of the following prospective donors would be accepted for donation - CORRECT
ANSWER - A college student who's temperature is 99.2F and states that he feels well, but
is nervous about donating- temp cannot be over 99.5F
Which one of the following constitutes permanent rejection status of a donor - CORRECT
ANSWER - A confirmed positive HBsAg 10 years previously- a positive HBsAg at any
time is an indefinite deferral
According to AABB standards, which of the following donors may be accepted as a blood donor
- CORRECT ANSWER - Spontaneous abortion at 2 months of pregnancy, 3 months
previously- as long as she has not been pregnant in the previous 6 weeks
Below are the results of the history obtained from a prospective female blood donor:
Age 16
Temp 99.0F or 37.2C
Hct 36%
History tetanus toxoid immunization 1 week previously
How many of the above results excludes this donor from giving blood for a routine transfusion? -
CORRECT ANSWER - 1-Hct must be > 38%, temp must be <99.5F, age can be 16 unless
the law states otherwise, BP <180/100, pulse must be 50-100 unless an athlete, toxoids and
vaccines from synthetic or killed sources have no deferral
,For apheresis donors who donate platelets more frequently than every 4 weeks, a platelet count
must be performed prior to the procedure and be at least - CORRECT ANSWER - 150 x
10^3/ uL (for frequent repeat donors)- a platelet count is not required prior to the first donation
or if the interval between donations is at least 4 weeks
Prior to blood donation, the intended venipuncture site must be cleaned with a scrub solution
containing - CORRECT ANSWER - PVP iodine complex- if the patient is allergic to
iodine they can use a preparation of 2% chlorohexidine and 70% isopropyl alcohol
All donor testing must include - CORRECT ANSWER - Serological test for syphilis- First
mandated donor screening test for infectious disease
During the preparation of platelet concentrates from whole blood, the blood should be -
CORRECT ANSWER - Cooled towards 20-24C- platelets are prepared and stored at this
temp for optimum function
The most common cause of post-trasfusion hepatitis can be detected in donors by testing for -
CORRECT ANSWER - HBsAg- the most common post-transfusion hepatitis is HBV.
HBsAg is required for detection of acute or chronic HBV
The western blot is a confirmatory test for the presence of - CORRECT ANSWER - anti-
HIV 1
The test that is currently used to detect donors who are infected with the AIDS virus is -
CORRECT ANSWER - anti-HIV 1 & 2
A commonly used screening method for anti-HIV-1 detection is - CORRECT ANSWER -
ELISA
Rejuvenation of a unit of RBC is a method used to - CORRECT ANSWER - restore 2,3-
DPG and ATP to normal levels
, A unit of packed cells is split into 2 aliquots under closed sterile conditions at 8 AM. The
expiration time for each aliquot is now - CORRECT ANSWER - The original date of the
unsplit unit- sterile docking devices allow entry into donor units without affecting the expiration
date of the product
A unit of RBC expiring in 35 days is split into 5 small aliquots using a sterile pediatric quad set
and a sterile connecting device. Each aliquot must be labeled as expiring in - CORRECT
ANSWER - 35 days- Sterile docking devices allow entry into donor units without
affecting the expiration date of the product
When platelets are stored on a rotator set on an open bench top, the ambient air temperature must
be recorded - CORRECT ANSWER - Every 4 hours- if the storage devices do not have an
automated temperature recording
Which of the following is the correct storage temp for the component listed?
Cryo AHF 4C
FFP -20C
RBC, frozen -40
Platelets 37C - CORRECT ANSWER - FFP @ -20
FFP is stored at -18C or below for 12 months
A unit of RBC is issued at 9AM. at 9:10AM the unit is returned to the blood bank. The container
has NOT been entered, but the unit has NOT been refrigerated during this time span. The best
course of action for the technologist is to - CORRECT ANSWER - Record the return and
place the unit back into inventory
1. it has not been entered.
2. at least1 sealed segment is attached to the container
3. visible inspection of the unit is satisfactory and documented
4. the unit the unit has been maintained at the appropriate temperature
