MLS ASCP Exam 2025 Questions
Solved.100% Complete.
Procainamide --Correct Answer--NAPA
loose clusters of small spherical micro conidia, positive urease --Correct Answer--
Trichophyton mentagrophytes
BHCG tumor marker --Correct Answer--chorocarcinoma
5HIAA --Correct Answer--carcinoid tumors
Proteus vulgaris vs P. mirabilis indole test --Correct Answer--P. vulgaris is indole pos. P.
mirabilis is indole neg
Hydatid cyst fluid --Correct Answer--used to neutralize Anti-P1 antibody
Antacid overdose --Correct Answer--Check pH
Prolonged PT, PTT, and thrombin after collecting from catheter --Correct Answer--
heparin contamination
mixing study that was performed with a prolonged PTT that couldn't be corrected --
Correct Answer--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 --Correct Answer--check the CaCl/phospholipid reagent delivery
Patient is on coumadin therapy, what will be affected --Correct Answer--Decreased
protein C
Lot's of stomatocytes --Correct Answer--Liver disease
Burr cells --Correct Answer--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 --Correct Answer--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 --
Correct Answer--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 --Correct Answer--check for
lipemia (elevates HGB)
PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's --Correct
Answer--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? --Correct Answer--howell jolly bodies
what falsely increases ESR --Correct Answer--vibration, tilting of tube, higher temps, >1
hr test time, improper mixing of blood, improper dilution
factors decreasing ESR --Correct Answer--Polycythemia, Microcytosis (Hb C), Sickle
cells, spherocytes, Anti-inflammatory medications, Hypogammaglobulinemia,
Hypofibrinogenemia (DIC), High WBC count, Hyperviscosity
Factors increasing ESR --Correct Answer--Anemia, Macrocytosis, Female gender, Age
>50 years, Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma,
rouleaux, infections, inflammation
what falsely decreases ESR --Correct Answer--low blood/ room temps, air bubbles, tests
<1 hr, improper mixing of blood, improper dilution
lactic acid collection --Correct Answer--separate from serum and put on ice
coefficient of variation --Correct Answer--(standard deviation/ mean) X 100
Carbon dioxide electrode measures what --Correct Answer--Used to measure free carbon
dioxide ions by detecting pH. The change in pH is measured by an internal pH sensor,
which is proportional to the carbon dioxide level.
patient that had a random glucose >200 and an FPG >126. What do you do next? --Correct
Answer--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?
--Correct Answer--RPR
Person tested positive for HIV-1 and HIV-2 but western blot was indeterminate. What do
you do? --Correct Answer--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? --Correct Answer--K (kell)
