ASCP ASCP-MLT Online Practice Questions and Exam Preparation

ASCP ASCP-MLT Online Questions & Answers

• Question 331:

  Thrombocytes, or platelets, are of course involved with hemostasis, not immunity.

  Immunology

  Which of the following would not be considered a part of the body's cellular immune system:

  A. Macrophages
  B. Mast cells
  C. Neutrophils
  D. Thrombocytes
  D. Thrombocytes

• Question 332:

  An international, nonprofit organization that establishes standards of best current practice for clinical laboratories is

  A. Centers for Disease Control and Prevention (CDC)
  B. Commission on Office Laboratory Accreditation (COLA)
  C. Clinical Laboratory Standards Institute (CLSI)
  D. the Joint Commission
  C. Clinical Laboratory Standards Institute (CLSI)

• Question 333:

  Hybridization is a technique used to determine presence of target DNA or RNA by adding a synthetic strand that binds by complementary base pairing to the target.

  Microbiology

  In molecular diagnostic testing, hybridization employs complementary base pair binding of a synthetic strand to DNA or RNA.

  A. true
  B. false
  A. true

• Question 334:

  Prozone effect (due to antibody excess) will result in an initial false negative in spite of the large amount of antibody in the serum, followed by a positive result as the specimen is diluted. The prozone effect ( when performing a screening titer) is most likely to result in:

  A. False positive
  B. False negative
  C. No reaction at all
  D. Mixed field reaction
  B. False negative

• Question 335:

  Which of the following is most likely to interact with arterial walls, leading to deposition of cholesterol, and initiating or worsening atherosclerosis?

  A. Large buoyant LDL
  B. Small dense LDL
  C. LDL phenotype 'A'
  B. Small dense LDL

• Question 336:

  As magnification INCREASES, the field of view will...

  A. stay the same
  B. decrease (get smaller)
  C. increase (get bigger)
  B. decrease (get smaller)

• Question 337:

  Gram-positive bacteria retain the primary crystal violet stain that is applied in the Gram stain because of the cross-linking of the thick peptidoglycan layer in their cell walls. Their cell walls contain less lipids than that of a gram-negative bacteria, and this reduces the permeability of their cell wall to the organic solvents that are used as a decolorizer. When the counterstain is added, it may enter the gram-positive cell, but does not change the color of the cells.

  A thick peptidoglycan is MOST often associated with which of the following types of bacteria?

  A. Gram-negative bacteria
  B. Gram-positive bacteria
  C. Both gram-negative and gram-positive bacteria
  B. Gram-positive bacteria

• Question 338:

  Following an accidental needlestick, the person should be tested for all of the following except:

  A. human immunodeficiency virus (HIV)
  B. hepatitis C virus (HCV)
  C. hepatitis B virus (HBV)
  D. hepatitis A virus (HAV)
  D. hepatitis A virus (HAV)

• Question 339:

  HLA-DR is a MHC class II(major histocompatibility complex) surface receptor on the cellular surface which is encoded by the human leukocyte antigen complex, or HLA. DR antigens are found in which of the following systems:

  A. Kell system
  B. HLA system
  C. Duffy system
  D. ABO system
  B. HLA system

• Question 340:

  "Universal donor", (a misnomer) is usually applied to group O, Rh negative blood. Although it may be necessary to use group O, Rh negative blood in an extreme emergency, it is preferable to use type specific blood for emergencies. In an extreme emergency , if the ABO and Rh type are unknown which of the following should be given to the patient?

  A. Group O, Rh positive blood
  B. Group AB, Rh negative blood
  C. Group O, Rh negative blood
  D. Any blood type is OK
  C. Group O, Rh negative blood