ASCP EXAMS VERIFIED QUESTIONS AND CORRECT ANSWERS2025

ASCP EXAMS VERIFIED QUESTIONS AND CORRECT ANSWERS

All gram negative diplococci are:
- ANSWERS-oxidase positive
catalase positive
grow on Choc and genus selective media (MTM, ML)
coffee bean shaped


Anti A: 4+
Anti B: 4+
A1 cells: 2+
B cells: 0


What is the front type, back type, and the discrepancy/resolution
- ANSWERS-Front type: AB
Back type: B


Patient is A2B
produces anti-A1, A2 reagent can be used to confirm type


Anti-A: 0
Anti-B: 0
A1 cells: 0
B cells: 0


What is the front type, back type, and discrepancy/resolution?
- ANSWERS-Front type: O
Back type: AB


Patient is O

, immunocompromised, elderly, or a newborn thus isnt able to produce adequate antibody levels to yield a
rxn (hypogammaglobulinemia)


enhancement techniques like incubating the sample with the reagent can be preformed to confirm type


Anti-A: 4+
Anti-B: 2+
A1 cells: 0
B cells: 4+


*GI disease


What is the front type, back type, and discrepancy/resolution?
- ANSWERS-Front type: AB
Back type: A


Patient is type A with acquired B phenomenon due to GI infection with gram negative bacteria (EX: E. coli)


weak front type with anti-B that is discordant with back type along with patient hx indicative of acquired B
*gram negative GI infections enzyme de-acetylates A Ag (cuts terminal sugar) making it resemble the B Ag


use Anti-B reagent that doesn't detect acquired B, or auto type with patient plasma to type red cells


Anti-A: 4+
Anti-B: 4+
A1 cels: 2+
B cells: 2+


What is the front type, back type, and discrepancy/resolution?
- ANSWERS-Front type: AB
Back type: O