MLS ASCP exam recall questions & Answers 2023 (Verified). loose clusters of small spherical microconidia, positive urease - Trichophyton mentagrophytes BHCG tumor marker - chorocarcinoma 5HIAA - carcinoid tumors Proteus vulgaris vs P. mirabilis indole test - P. vulgaris is indole pos. P. mirabilis is indole neg Hydatid cyst fluid - used to neutralize Anti-P1 antibody Antacid overdose - Check pH Prolonged PT, PTT, and thrombin after collecting from catheter - heparin contamination mixing study that was performed with a prolonged PTT that couldn't be corrected - DRVVT (Dilute Russell Viper Venom Test) two pt's ran in duplicate (PT and PTT). The PTT seemed to always be prolonged but PT looked ok - check the CaCl/phospholipid reagent delivery Patient is on coumadin therapy, what will be affected - Decreased protein C Lot's of stomatocytes - Liver disease Burr cells - Uremia Picture of target cells with hemoglobin C crystals. The white count was high on instrument 1, so a second instrument was used with a stronger lysing agent, and the white count was corrected - anti-lysing target cells are what increased the white count? Erythrocytes containing hemoglobin C do not lyse normally (sickle cell diseases) A sodium citrate tube was drawn for a HCT on a pt but the hematocrit was abnormal - recollect with decreased anticoagulant. high hct (>55%) causes low plasma so you need less anticoagulant Question that gives a red blood cells count, HGB, and HCT. I did the rule of 3 and found that the HGB didn't meet the rule of 3 because it was too high - check for lipemia (elevates HGB) PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's - Prussian blue for howell jolly bodies made of iron. Prussian blue stain, which is not taken up by reticulocytes, is helpful in differentiating the two. what is composed of DNA? - howell jolly bodies what falsely increases ESR - vibration, tilting of tube, higher temps, >1 hr test time, improper mixing of blood, improper dilution factors decreasing ESR - Polycythemia, Microcytosis (Hb C), Sickle cells, spherocytes, Antiinflammatory medications, Hypogammaglobulinemia, Hypofibrinogenemia (DIC), High WBC count, Hyperviscosity Factors increasing ESR - Anemia, Macrocytosis, Female gender, Age >50 years, Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma, rouleaux, infections, inflammation what falsely decreases ESR - low blood/ room temps, air bubbles, tests <1>200 and an FPG >126. What do you do next? - diagnosis with diabetes mellitus. (need secondary confirmation from 4 criteria. FRG >126, Random glucose >200, ogtt >200, or Hb A1c >6.5) Man tested positive for syphilis 2 years ago but may have again, how would you test him? - RPR Person tested positive for HIV-1 and HIV-2 but western blot was indeterminate. What do you do? - repeat western blot in a month. There was a positive DAT on cord blood; mother is Rh pos, baby is Rh neg. What is most likely coating the baby's red cells? - K (kell) Picture of what looks like cold agglutinins - Paroxysmal cold hemoglobinuria? (Aggregation of the RBCs can occur, but this is considered mild compared with cold hemagglutinin disease. ) Mycoplasma infections more likely? What phase can rouleux not be detected in? - AHG