ASCP ASCP-MLT Online Practice Questions and Exam Preparation

ASCP ASCP-MLT Online Questions & Answers

• Question 271:

  Serum amylase and lipase levels may be slightly elevated in chronic pancreatitis, but not diagnostic enough to predict chronic pancreatitis; wheras high levels are found only during acute pancreatitis episodes. In the later stages of chronic pancreatitis, normal to decreased levels of amylase and lipase are caused by the gradual inability of the pancreas to secrete the enzyme

  All of the statements below regarding amylase and lipase in pancreatitis are TRUE EXCEPT:

  A. Amylase and lipase are as predictive in chronic as in acute pancreatitis.
  B. Diagnosis sensitivity is increased by assaying both amylase and lipase.
  C. Urinary amylase: creatinine ratio is the most sensitive test for acute pancreatitis.
  D. Serum lipase peaks at 24 hours after an episode of acute pancreatitis and remains high for 7-8 days.
  A. Amylase and lipase are as predictive in chronic as in acute pancreatitis.

• Question 272:

  Although any one of the answers might be considered correct, a report of gram-positive cocci in chains provides sufficient information without going beyond what the observation might allow. In off-the record conversation with the physician, a technologist might divulge that the picture is consistent with Streptococcus; however, enterococci may have a similar Gram stain appearance, potentially leading to the wrong choice of empiric antibiotic agents.

  

  The image shows the Gram stain prepared from the positive blood culture. What is the MOST appropriate report?

  A. Gram-positive cocci
  B. Gram-positive cocci in chains
  C. Gram-positive cocci consistent with Streptococcus
  D. Gram-positive cocci consistent with Enterococcus
  B. Gram-positive cocci in chains

• Question 273:

  When making a platelet concentrate, the proper procedure is to start with a low centrifugation of the whole blood bag. After the plasma is removed, it is centrifuged again at a higher speed to separate the platelet portion from the plasma portion.

  Blood bank

  The following steps must be followed in preparation of a platelet concentrate:

  A. Whole blood centrifuged at low speed - plasma separated then centrifuged at low speed
  B. Whole blood centrifuged at high speed - plasma separated then centrifuged at high speed
  C. Whole blood centrifuged at low speed - plasma separated then centrifuged at high speed
  D. Whole blood centrifuged at high speed - plasma separated then centrifuged at low speed
  C. Whole blood centrifuged at low speed - plasma separated then centrifuged at high speed

• Question 274:

  Which of the following tests detect LTBI:

  A. BAMT
  B. culture
  C. PCR
  D. Two-step TST
  A. BAMT

• Question 275:

  In this case, with the pre-incubation aPTT mixing study result "corrected" and the post- incubation aPTT mixing study result "not corrected", a coagulation inhibitor should be suspected. Both anti-factor VIII and lupus anticoagulant have been known to be slow-acting and can exhibit this result pattern. If a factor deficiency was present, we should not see a post-incubation prolongation. Hematology What may cause the following mixing studies results? Initial aPTT = 133 seconds

  1:1

  Mix aPTT pre-incubation = 33 seconds

  1:1

  Mix aPTT post-incubation = 124 seconds

  A. Factor IX deficiency
  B. Factor XI deficiency
  C. A slow acting coagulation inhibitor
  C. A slow acting coagulation inhibitor

• Question 276:

  Although cysteine-blood agar was traditionally used, F. tularensis will also grow on commercially available Thayer-Martin and chocolate agar which have been enriched with supplemental nutrients.

  Which of the following media would you use to isolate Francisella tularensis:

  A. Sheep-blood agar
  B. Lowenstein-Jensen media
  C. Bordet-Gengou media
  D. Cysteine-blood agar
  D. Cysteine-blood agar

• Question 277:

  Fresh frozen plasma must be thawed at a maximum of 37°C in a water bath or similar equipment that has been validated and is temperature monitored. When using a water bath, the FFP should be wrapped in a plastic liner. After thawing, it is recommended that the FFP be administered immediately, preferably within 2 hours post-thaw. The BEST way to thaw Fresh Frozen Plasma is to thaw it by:

  A. leaving it at room temperature away from agitation
  B. refrigerating the FFP on a bottom rack
  C. placing the FFP in a 37°C or lower in a water bath
  D. placing the FFP in a 121°C or higher in a steam sterilizer
  C. placing the FFP in a 37°C or lower in a water bath

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  Explanation/Reference:

• Question 278:

  Deviations from Beer's Law are caused by:

  A. very low concentration of absorbing material
  B. polychromatic light
  C. very high concentrations of substance being measured in a colorimetric reaction
  D. stray light
  D. stray light

• Question 279:

  Neutrophils are typically increased in urinary bacterial infections.

  What type of white blood cell is seen MOST frequently in urine sediment with infections of the urinary system?

  A. Eosinophil
  B. Lymphocyte
  C. Monocyte
  D. Neutrophil
  E. Plasma cell
  A. Eosinophil

• Question 280:

  The characteristic that distinguishes vancomycin-resistant Enterococcus faecium and Enterococcus faecalis from other Enterococcus species is their lack of motility.

  Enterococci are all catalase-negative. Growth on bile esculin agar and in 6.5% salt broth are two characteristics that have commonly been used to identify Enterococcus to the genus level. A positive esculin in combination with a positive PYR reaction is another approach to presumptive identification.

  Which one of these characteristics distinguishes vancomycin-resistant Enterococcus faecium and Enterococcus faecalis from other Enterococcus species?

  A. PYR positive reaction
  B. Non-motility
  C. Catalase negative
  D. Growth on bile esculin agar
  B. Non-motility