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ASCP MLS EXAM 2023/2024 LATEST UPDATE GRADED A+ WITH QUESTIONS AND CORRECT SOLUTIONS

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Procainamide - ANSWERS--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 accumula...

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  • January 8, 2024
  • 41
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • ascp mls exam
  • ascp mls exam latest update graded a

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ASCP MLS EXAM 2023/2024 LATEST UPDATE

GRADED A+ WITH QUESTIONS AND

CORRECT SOLUTIONS


Procainamide - ANSWERS--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 - ANSWERS--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 - ANSWERS-Answer: chorocarcinoma

-The are are 2 forms of hCG Alpha (common form) and Beta (unique form)



5HIAA 5-hydroxyindoleacetic acid - ANSWERS--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 - ANSWERS-P. vulgaris is indole pos. P.

mirabilis is indole neg



Hydatid cyst fluid - ANSWERS-used to neutralize Anti-P1 antibody



Antacid overdose - ANSWERS-Check pH



Prolonged PT, PTT, and thrombin after collecting from catheter - ANSWERS-heparin

contamination



mixing study that was performed with a prolonged PTT that couldn't be corrected -

ANSWERS-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 - ANSWERS-check the CaCl/phospholipid reagent delivery



Patient is on coumadin therapy, what will be affected - ANSWERS-Decreased protein C



Lot's of stomatocytes - ANSWERS-Liver disease

,Burr cells - ANSWERS-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 -

ANSWERS-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 -

ANSWERS-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 - ANSWERS-check for

lipemia (elevates HGB)



PBS with an elevated reticulocyte count and howell jolly bodies in the RBC's -

ANSWERS--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? - ANSWERS-howell jolly bodies

-wright Stain



what falsely increases ESR - ANSWERS-vibration, tilting of tube, higher temps, >1 hr

test time, improper mixing of blood, improper dilution



factors decreasing ESR - ANSWERS-Polycythemia, Microcytosis (Hb C), Sickle cells,

spherocytes, Anti-inflammatory medications, Hypogammaglobulinemia,

Hypofibrinogenemia (DIC), High WBC count, Hyperviscosity



Factors increasing ESR - ANSWERS-Anemia, Macrocytosis, Female gender, Age >50 years,

Obesity, Pregnancy, Hypercholesterolemia, cancer, multiple myeloma, rouleaux, infections,

inflammation



what falsely decreases ESR - ANSWERS-low blood/ room temps, air bubbles, tests <1

hr, improper mixing of blood, improper dilution



lactic acid collection - ANSWERS-separate from serum and put on ice



coefficient of variation - ANSWERS-(standard deviation/ mean) X 100

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