ASCP ASCP Certifications ASCP-MLT Questions & Answers

• Question 11:

  Abrupt change in temperature is one of the risk factors in which a sickling event may occur.

  Dehydration, hypoxia, and physical exertion, rather than excessive intake of fluids, inhaling oxygen, and sedentary lifestyle, are all additional risk factors in which sickling events may occur.

  Which of these could cause a sickling event?

  A. Excessive intake of water

  B. Fluctuations in temperature

  C. Oxygen inhalation

  D. Sedentary life-style

  Correct Answer: B

• Question 12:

  he last choice in this question is false. Rocky mountain spotted fever is NOT geographically restricted to the Rocky mountain region. In fact, according to the CDC, this disease is widely distributed east of the Rocky Mountains and also occurs in limited areas on the Pacific Coast.

  Which one of the following statements is false?

  A. Rickettsial infections are usually best diagnosed by specific serology, rather than the Weil-Felix test

  B. Ehrlichiosis is transmitted by the lonestar tick

  C. Rickettsia rickettsii causes Rocky mountain spotted fever

  D. Rocky mountain spotted fever is almost always geographically restricted to the Rocky mountain region

  Correct Answer: D

• Question 13:

  Heparin is the additive of choice for blood gas syringe collection as it has the least amount of interference with the blood gas analytes measured.

  Which of the following additives should be used for the collection of a sample for blood gas analysis:

  A. Sodium citrate

  B. EDTA

  C. Sodium oxalate

  D. Heparin

  Correct Answer: D

• Question 14:

  A. True

  B. False

  Correct Answer: B

• Question 15:

  Haemophilus influenzae is both X and V factor dependent for growth, and is the most common cause of obstructive laryngitis and epiglottitis. H. parainfluenzae is only V-factor dependent and causes only mild pharyngitis, rarely obstructive in nature. H. aphrophilus can be part of the normal upper respiratory flora in humans, does not cause pharyngitis, and is not X or V-factor dependent for growth. Although H. haemolyticus is both X and V- factor dependent, it is beta hemolytic on blood agar and is generally considered non pathogenic.

  Acute obstructive epiglottitis, both in adults and children, is caused by the bacterial species shown in this split screen photograph. The colonies recovered on chocolate agar (upper frame) required both hematin and NAD, (as shown by colony growth only between the X and V strips in the lower frame). The most likely identification is:

  

  A. Haemophilus parainfluenzae

  B. Haemophilus influenzae

  C. Haemophilus aphrophilus

  D. Haemophilus haemolyticus

  Correct Answer: B

• Question 16:

  The most important purpose of a requisition form is: Question options:

  A. authorization to perform the procedure

  B. location of the patient

  C. providing a system to report results

  D. monitoring test result turnaround time

  Correct Answer: A

• Question 17:

  The laboratory employee with a 4-year college degree who performs clinical analysis is the:

  A. clinical laboratory assistant (CLA)

  B. phlebotomist

  C. clinical laboratory scientist (CLS) or medical laboratory scientist (MLS) in newer terminology or Medical Technologist (MT) in older terminology

  D. medical laboratory technician (MLT)

  Correct Answer: C

• Question 18:

  What two glycoproteins are expressed on the surface of influenza A viruses and are used for subtyping of the viruses?

  A. Hemagglutinin

  B. Glycoprotein120 (gp120)

  C. Glycoprotein41 (gp41)

  D. Neuraminidase

  Correct Answer: A

• Question 19:

  Sterile yellow stopper tubes contain thixotropic gel and a clot activator. Question options:

  A. True

  B. False

  Correct Answer: B

• Question 20:

  Failure to tightly seal specimens for sweat electrolytes during collection and transport will cause:

  A. decreased values due to exposure to air

  B. decreased values due to exposure to light

  C. increased values due to evaporation

  D. increased values due to cellular contamination

  Correct Answer: C