ASCP ASCP Certifications ASCP-MLT Questions & Answers

• Question 171:

  Bacterial contamination can manifest itself in several ways including: the presence of clots, darker purple-black color of blood unit, unit can appear cloudy, hemolysis may be present.

  During routine inspection, a unit of unexpired blood was noticed to have a black color with numerous small clots. What is the likely cause for this observation?

  A. the unit was frozen

  B. donor had DIC

  C. viral contamination

  D. bacterial contamination

  Correct Answer: D

• Question 172:

  The agency within Department of Health and Human Services (DHHS) responsible for implementing CLIA'88 is:

  A. Clinical and Laboratory Standards Institute (CLSI)

  B. Commission on Office Laboratory Accredition (COLA)

  C. Centers for Medicare and Medicaid Services (CMS)

  D. Health Insurance Portability and Accountability (HIPPA)

  Correct Answer: C

• Question 173:

  The indole (modified Kovacs' reagent) is used to assess the ability of certain bacteria to produce indole by the deamination of tryptophan. Indole reacts with aldehyde in the Kovac's reagent to produce a red color. An alcoholic layer holds the red color as a ring at the top of the tube used for the idole test.

  If a bacteria produces the enzyme tryptophanase to break down the amino acid tryptophan, which of the following tests will be positive with Kovac's reagent?

  A. oxidase test

  B. esculin test

  C. catalase test

  D. citrate test

  E. indole test

  Correct Answer: E

• Question 174:

  This Gram stain is under-decolorized

  This microscopic field is representative of other fields that were observed on a Gram- stained smear. Which of the following describes the quality of the smear?

  

  A. Under-decolorized

  B. Over-decolorized

  C. Sufficiently decolorized

  Correct Answer: A

• Question 175:

  The deposition of plaques containing cholesterol and lipids on the innermost layer of the walls of large and medium-sized arteries is the defintion of atherosclerosis.

  Arteriosclerosis is a more general term that describes a thickening and loss of elasticity of the walls of the arteries (hardening of the arteries). Atherosclerosis is a type of arteriosclerosis but is not synonymous with it.

  Atherosclerosis is not the most common outcome for risk marker studies because it can be hard to measure. Infarcts, cardiac procedures, death, and 'events' are more common. Most humans have visible or measureable atherosclerosis by

  early middle age.

  Chemistry

  Which of the following is true concerning atherosclerosis?

  A. Atherosclerosis is the same as arteriosclerosis.

  B. Atherosclerosis is the deposition of plaques containing cholesterol and lipids on the innermost layer of the walls of large and medium-sized arteries.

  C. Atherosclerosis is the main outcome that is assessed in risk marker studies.

  D. Most humans do not have significant atherosclerosis.

  Correct Answer: B

• Question 176:

  The FTA-ABS is used to confirm that a positive non-treponemal test like RPR is not the result of a biological false positive, which occur in about 1 to 10 percent of the population.

  A positive RPR test and a negative FTA-ABS test is most likely the result of:

  A. Primary syphilis

  B. Secondary syphilis

  C. Latent syphilis

  D. False positive reaction

  Correct Answer: D

• Question 177:

  All the following characteristics are accurate for the influence of Health Insurance Portability and Accountability Act (HIPAA) except

  A. Establishes a minimum standard for security of electronic health information and the electronic interchange of information

  B. Replaced federal, state, or other laws that grant individuals even greater privacy protections than HIPAA

  C. Directly effects the laboratory information system (LIS)

  D. Covers entities that are free to retain or adopt more protective policies or practices

  Correct Answer: B

• Question 178:

  Skeletal deformations result from the increased erythropoiesis that occurs in beta thalassemia major. Children with beta thalassemia intermedia may demonstrate some facial bone deformity, however this is not common. Beta thalassemia minor rarely causes any physical signs or symptoms and beta thalassemia minima is completely asymptomatic.

  Skeletal deformations are most commonly present in which of the following beta thalassemias?

  A. Beta thalassemia minor

  B. Beta thalassemia intermedia

  C. Beta thalassemia major

  D. None of the beta thalassemias

  E. All of the beta thalassemias equally

  Correct Answer: C

• Question 179:

  The correct answer is Trichophyton rubrum. The tiny microconidia are lined up in a "birds on the fence" arrangement along the hyphal strand transversing the field of view (yellow arrows). Two pencil-shaped, smooth walled macroconidia are

  also seen in the lower left field of view (red arrows).

  Trichophyton verrucosum may produce microconidia in small quantities. However, they are irregularly arranged with little tendency to line up along the hyphae. Antler hyphae and string bean macroconidia are characteristic of this species.

  One of the key characteristics in the identification of Epidermophyton floccosum is the inability of this dermatophyte to produce microconidia. Two to four-celled, club-shaped macroconidia are produced, usually in clusters of two or three.

  

  The profusion of tiny microconidia lining up along the hyphae in this photomicrograph is characteristic of which of the following organisms?

  A. Epidermophyton floccosum

  B. Trichophyton verrucosum

  C. Trichophyton rubrum

  Correct Answer: C

• Question 180:

  A patient has a WBC count of 4,000/mm3, a platelet estimation with 3 bizarre platelets/oil immersion field, hemoglobin, hematocrit, red cell count and indice values are within normal limits. Blue-staining inclusions are seen in the cytoplasm of many neutrophils. These inclusions fit the description of:

  A. Auer rods

  B. Barr bodies

  C. Dohle bodies

  D. May-Hegglin bodies

  Correct Answer: D