ABO
Rh
Other Blood Groups
Blood Bank Numbers
Testing Methods
Blood Donors
200
What does a patient with Bombay phenotype lack?
The H antigen
200
Are Rh antigens destroyed or enhanced by enzymes?
Enchanced: Lewis is a PeeIing Rhotten Kidd
200
Antibodies to this blood group system are notorious for decreasing to undetectable levels and also for showing dosage?
Kidd
200
Maximum WBCs left after leukoreduction
5x106
200
What does LISS stand for?
Low ionic strength saline
200
What is the Hemoglobin cutoff for donating blood? (Different for men and women)
13.0 g/dL (Men)
12.5 g/dL (women)
400
Who may be missing reactivity on their back type? (missing antibodies)
Elderly and newborns. Some hemotologic malignancies as well
400
What does a anti-G antibody look like on an antibody panel?
Anti-D and anti-C
400
Which antigen is the receptor for Plasmodium vivax?
Duffy
400
Minimum concentration of fibrinogen in a cryo unit?
150 mg
400
What type of testing requires Check Cells?
Tube testing after AHG phase
400
Accutane (Isoretinoin) use deferral length
1 month
600
Group A1 and A2 red cells can be distinguished by used of this lectin?
Dolichos biflorus
600
Which population of people is it most important to not miss a Weak D?
Blood Donors
600
Which precursor chain is present on red blood cells (Type 1 or 2)?
Type 2
600
Expiration of Cold Stored Platelets
14 Days
600
What is the Zeta Potential?
Closest that 2 RBCs can get to each other based off electrical charge.
~14nm
600
What is the most common adverse donor reaction?
Bruise/hematoma
800
What sugar is this on the H antigen?
Fuctose
800
This Rh genotype is called a “full house” because individuals have all the Rh antigens (D, C, E, c, e)
R1/R2
DCe/DcE
Also R2/r’ and RZ/r and R0/ry
800
People who express Le(a) but not Le(b) in secretions and on red blood cells must lack this gene?
Se (FUT2)
800
Length of Storage and temperature post-thawing, unpooled cryo
6 hours at 20-24C
800
Who is eligible for a Type and Screen 30?
Outpatient surgery patients with no history of transfusion over three past 3 months
800
What is the Hemoglobin cutoff for donating autologous blood?
11.0 g/dL
1000
What is a cause of Acquired B phenomenon?
Gram-negative bacteria often associated with colon cancer. Causes N-acetylgalactosamine (the A sugar) to be cleaved to galactosamine which resembles Galactose (the B sugar)
1000
What are the 4 most common Rh haplotypes in Caucasians in order?
R1 > r > R2 > R0
1000
The rare X-linked Chronic Granulomatous Disease is associated with this unusual red cell phenotype?
The McCleod phenotype (Kell null with weak k, Kpb & Jsb)
1000
Time frame from blood bank issue transfusion must be initated
30 Minutes
1000
A patient with a positive DAT showing reactivity at IgG phase suspected to be due to drug effect would show the following result on elution?
Negative with all tested panel cells because the antibody is directed against drug coated RBCs. A warm autoantibody that is not drug related generally shows all positive cells in a panel on elution
1000
The deferral for having received the Rubella vaccine is?
4 weeks
Rubella (German measles) and varicella zoster (chicken pox) have 4 week deferrals
"Avoid German Chickens for 4 weeks"