MLS ASCP Exam Questions & Answers 2023/2024
Procainamide - ANSWER--Answer: NAPA
-p. 86-Ant antiarrhythmic drug that has a metabolite with the same drug action
-Procainamide is metabolized to N-Acetylprocainamide (NAPA)
- Must quantify both. Although they have the same drug affect, differenc...
-p. 86-Ant antiarrhythmic drug that has a metabolite with the same drug action
-Procainamide is metabolized to N-Acetylprocainamide (NAPA)
- Must quantify both. Although they have the same drug affect, difference in half- life may cause NAPA to
accumulate in the blood and produce toxic affects even at therapeutic levels of procainamide.
loose clusters of small spherical microconidia, positive urease - ANSWER--Answer: Trichophyton
mentagrophytes -Trichophyton is the only Dermatophyte with two colony types : macroconidia and
microconidia. - T. mentagrophytes characteristically produce "grapelike clusters" of microconidia. -
Positive in the hair perforation test.
-The are are 2 forms of hCG Alpha (common form) and Beta (unique form)
5HIAA 5-hydroxyindoleacetic acid - ANSWER--Answer: carcinoid tumors -5HIAA: primary metabolite of
serotonin, a chemical substance (neurotransmitter) that transmits messages between nerve cells. -Large
quantities of serotonin and 5-HIAA may be produced by some carcinoid tumors.- Carcinoid tumors are
slow-growing noncancerous or cancerous neuroendocrine masses that can form in the GI tract,
especially in the appendix, and in the lungs.
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)
two pt's ran in duplicate (PT and PTT). The PTT seemed to always be prolonged but PT looked ok -
ANSWER-check the CaCl/phospholipid reagent delivery
Patient is on coumadin therapy, what will be affected - ANSWER-Decreased protein C
Lot's of stomatocytes - ANSWER-Liver disease
Burr cells - 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 - 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 - 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 - ANSWER-check for lipemia (elevates HGB)
PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's - ANSWER--Answer: howell
jolly bodies= DNA= Wright Stain
-Peppenheimer- Prussian blue stain
-which is not taken up by reticulocytes
-helpful in differentiating the two.
-Reticulocytes=Supravital/ new methylene blue stain
what is composed of DNA? - ANSWER-howell jolly bodies
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