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Lab Management
Clin Chem
Blood Bank
Micro
Coag
100
TN/(TN+FP)
What is the calculation for Specificity?
100
The most specific cardiac enzyme to test.
What is Troponin I?
100
To prevent transfusion-associated graft vs. host disease.
Why do we irradiate blood products prior to transfusion?
100
The most common cause of UTI.
What is Escherichia coli?
100
The most common bleeding diathesis, present in 1% of the population.
What is Von Willebrand Disease?
200
The rule that states your lab has a good chance of passing proficiency testing if the SD for the surveyed analyte is <33% of SD allowed.
What is the "1/3" rule?
200
The first and usually largest peak on serum protein electrophoresis.
Where is the albumin peak on serum protein electrophoresis?
200
The most common bacteria implicated in RBC bacterial contamination.
What are Yersinia enterocolitica, Serratia liquifaciens, Citrobacter, and Pseudomonas spp.?
200
The most common cause of acute infectious diarrhea.
What are viruses (especially noroviruses, enteric adenoviruses, and rotavirus)?
200
What is corrected by a mixing study.
What is a factor deficiency?
300
Delayed reporting, errors within reports, misreading or incorrectly hearing the report are examples of this error.
What are postanalytic errors?
300
Trisomy 21 has this characteristic pattern of AFP, hCG, uE, and inhibin.
What is a cause of decreased AFP and uE, and increased hCG and inhibin?
300
This transfusion reaction most commonly presents are a result of Kidd, Kell, and Duffy antigens.
What is a delayed hemolytic transfusion reaction?
300
The pathogenic diarrheal organisms that can be found on a routine stool culture.
What are Salmonella, Shigella, E. coli, and Campylobacter?
300
What you should suspect if the immediate aPTT is corrected with a mixing study but not the incubated aPTT.
What is an inhibitor?
400
The Westgard rule where 2 values within the same run are located >4 SD from each other.
What is the R:4s rule?
400
The half life of amphetamines.
What is 30 minutes?
400
The standards for irradiation of blood products.
What is 2500 cGy to the midplane of the product and 1500 cGy to any portion of the product?
400
Forms syncytia in Hep2 cells on cell culture.
What is the cell culture appearance of RSV?
400
That antibodies needed to diagnose anti-phospholipid syndrome.
What are anti-cardiolipin and lupus anticoagulant? (Just need one to be positive, but 8-12 weeks apart)
500
The color top tube of cells sent for plasma chemistry.
What is a green top tube?
500
The calculation for an anion gap.
What is [Na]-([Cl] + [HCO3])
500
The usual filter size for RBC transfusions.
What is a 170 micron microaggregate filter?
500
The HACEK organisms.
What are Haemophilus spp., Actinobacillus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, and Kingella spp.?
500
The type of vWD that has a defect preventing binding of vWF to GPIb. Multimer analysis appears normal. This is very rare.
What is Type IIM?