MLS ASCP Exam (2023) Questions And 100% Correct Answers

c antigen is most common in blacks and whites; anti-c would be most common reactive - ANSWER- Rh antibodies show enhanced reactivity with enzyme pretreated cells. The M and Fya antigens are cleaved from enzyme pretreated cells and therefore there would be no reaction between enzyme pretreated cells and serum containing anti-M or anti-Fya. The incidence of the c antigen is 80% in whites and 96% in blacks. The incidence of the E antigen is 29% in whites and 22% in blacks. Increased reactivity with enzyme pretreated cells and incompatible results with 8 of 10 donor units is most likely due to anti-c. Procainamide - ANSWER- NAPA loose clusters of small spherical microconidia, positive urease - ANSWER- Trichophyton mentagrophytes BHCG tumor marker - ANSWER- chorocarcinoma 5HIAA - ANSWER- carcinoid tumors Proteus vulgaris vs P. mirabilis indole test - ANSWER- P. vulgaris is indole pos. P. mirabilis is indole neg Hydatid cyst fluid - ANSWER- used to neutralize Anti-P1 antibody Antacid overdose - ANSWER- Check pH Prolonged PT, PTT, and thrombin after collecting from catheter - ANSWER- heparin contamination mixing study that was performed with a prolonged PTT that couldn't be corrected - ANSWER- DRVVT (Dilute Russell Viper Venom Test) tw