ASCP Blood bank Questions and Answers 100% Pass
The minimum hemoglobin concentration in a finger stick from a male blood donor is - Answers 12.5 g/dL- all donors no matter the sex
A cause for permanent deferral of blood donation is - Answers History of jaundice of uncertain cause- could be a from...
The minimum hemoglobin concentration in a finger stick from a male blood donor is - Answers 12.5
g/dL- all donors no matter the sex
A cause for permanent deferral of blood donation is - Answers 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 - Answers 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 - Answers 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 -
Answers 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? -
Answers 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 - Answers 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 - Answers 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 - Answers 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 - Answers
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 - Answers
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 - Answers anti-HIV 1
The test that is currently used to detect donors who are infected with the AIDS virus is - Answers anti-
HIV 1 & 2
A commonly used screening method for anti-HIV-1 detection is - Answers ELISA
Rejuvenation of a unit of RBC is a method used to - Answers 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 - Answers 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 - Answers 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 - Answers 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 - Answers 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 - Answers 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
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