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Blood bank study

QuestionAnswer
Minimum hemoglobin concentration in a finger stick 12.5 g/dL
Prior to blood donation the site must be cleaned with Iodine
During preparation of Platelet Concentrated from Whole Blood the blood should be cooled towards 20-24 C
The Western blot is a confirmatory test for presence of anti-HIV-1
The test that is currently used to detect donors who are infected with AIDS virus is Anti-HIV 1,2
A commonly used screening method for anti-HIV-1 detection is ELISA
A unit of packed cells is split into 2 aliquots under closed sterile conditions at 8AM. The expiration time for each aliquot is now the original date. Sterile conditions allow expiration date to remain the same
When platelets are stored on a rotator set on an open bench top the ambient air tempered must be recorded every 4 hours
The optimum storage temperature for RBCs is 1-6 C
If the seal is entered on a unti of RBCs stored at 1-6 C what is the maximum allowed storage period in hours 24 hours
The optimum temperature for cryoprecipitated AHF is < -18 C
Platelets prepared in polyolefintype container stored at 22-24 C in 50mL of plasma and gently agitated can be used for up to 5 days
cryoprecipitated AHF must be transfused within what period of time after thawing 4 hours
optimum storage temperature for platelets is 20-24 C
According to AABB standards, Fresh Frozen Plasma must be infused within what period of time after thawing 24 hours
Cryoprecipitated AHF if maintained in the frozen state at <-18 C has a shelf life of 12 months
In the liquid state plasma must be stored at 1-6 C
Iradiation of a unit of RBCs is done to prevent the replication of donor lymphocytes
Which blood components must be prepared with 8 hours after donation Fresh Frozen Plasma
A blood component prepared by thawing Fresh Frozen Plasma at refrigerator temperature and removing fluid portion is Cryoprecipitated AHF
Upon inspection a unit of platelets is noted to have visible clots but otherwise appears normal. The tech should quarantine for Gram stain and culture, clots could be a sign of contamination
Which of the following is proper procedure for preparation of Platelets from whole blood light spin followed by a hard spin lightspin followed by 2 hard spins 2 light spins hard spin followed by a light spin light spin followed by a hard spin
A unit of whole blood-derived Platelets should contain at least 5.5x10 to the 10th platelets
Platelets prepared by apheresis should contain at least 3x10 to the 11th platelets
To qualify for autologous donation and transfusion a patients hemoglobin must be at least 11g/dL
what is the minimum pretransfusion testing requirements for autogolous units ABO and Rh typing only
The linked HLA gene on each chrosome constitutes haplotype
anti-D + anti-C + anti-E = anti-c + anti-e + most probable genotype DCe/dce (R1,r)
A blood donor has the genotype hh, AB. What is the phenotype O with no H precursor donor can not have A or B antigens
An individual has been sensitized to the k antigen and has produced anti-k. What is the most probable Kell genotype? KK No little k antigen.
Most blood group systems are inherited as autosomal codominant
anti-C + anti-D + anti-E + anti-c + anti-e + most probable genotype DCcEe DCe/DcE R1,R2
anti-D + anti-C = anti-E = genotype RR R1r R1R2 Rzr RR
Which of the following genotypes reacts with anti-f rr R1R1 R2R2 R1R2 rr Anti-f will react with cells containing c and e on the same Rh polypeptide.
anti-D + anti-C + anti-E + anti-c + anti-e + anti-f = DCe/DcE R1R2
Created by: ericaj