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MLS ASCP Exam Questions And Accurate Answers
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MLS ASCP Exam Questions And Accurate Answers 2024-2025Procainamide - 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, 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.
Beta -HCG tumor marker - Answer Answer: chorocarcinoma
-The are are 2 forms of hCG Alpha (common form) and Beta (unique form)
5HIAA 5-hydroxyindoleacetic acid - Answer -Answer: carcinoid tumors -5HIAA: principal
breakdown product of serotonin, a chemical (neurotransmitter) that transmits signals
across synapses from neurons to other neurons or to muscles or glands. -Some
carcinoid tumors are able to produce large quantities of serotonin and 5-HIAA.-
Carcinoid tumors are slow growing noncancerous or cancerous neuroendocrine tissue
masses that can occur anywhere in the GI tract but especially in the appendix, as well
as 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 Recall with less 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 comprised of DNA? - Answer howell jolly bodies
-wright Stain
what falsely elevates ESR - Answer vibration, tilting of tube, higher temps, >1 hr test
time, improper mixing of blood, improper dilution
factors lowering ESR - Answer Polycythemia, Microcytosis (Hb C), Sickle cells,
spherocytes, Anti-inflammatory medications, Hypogammaglobulinemia,
Hypofibrinogenemia (DIC), High WBC count, Hyperviscosity
ESR increasing factors- Answer Anemia, Macrocytosis, Female gender, Age >50 years,
Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma, rouleaux,
infections, inflammation
what decreases ESR falsely - Answer low blood/ room temps, air bubbles, tests <1 hr,
improper mixing of blood, improper dilution
lactic acid collection - Answer separate from serum and put on ice
coefficient of variation - Answer (standard deviation/ mean) X 100
Carbon dioxide electrode measures what - 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.
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