ASCP MEDICAL LABORATORY TECHNICIAN - MLT(ASCP) Sample Questions:

1. Hemolytic anemia, myelodysplasia, and liver disease may each fit this peripheral blood picture. Each of these conditions can display peripheral blood macrocytosis. It is easy to observe the overall larger size of the red blood cells in this image compared to the normal lymphocyte also present.
When macrocytes are present, they should be examined for their shape (round vs. oval), the hemoglobin content (central pallor), and whether or not there are any inclusions present in the cell.
Iron deficiency would not be the correct answer in this case, since this condition is associated with microcytosis instead.
The complete blood count was obtained from a patient recently admitted to the emergency room. The red blood cell indices obtained revealed an MCV of 115 femtoliters (fL) (normal range 80 - 90 fL). The patient met the criteria for a peripheral blood smear examination. A representative field is shown on the right.

Which of the following conditions may be indicated by the results seen on this peripheral blood smear?

A) Hemolytic anemia
B) Iron deficiency
C) Liver disease
D) Myelodysplasia

2. A zone of inhibition is the area around an antibiotic-infused paper disk that does not show any bacterial growth. The antibiotic impregnated on the disk will diffuse into the agar in the area surrounding the disk. If the bacteria are sensitive to the antibiotic, they cannot grow near the disk. The size of the zone is proportional to how sensitive the organism is. If the organism is resistant to the antibiotic, it will grow very closely to the disk.
The size of the zone of suppressed growth on a sensitivity plate using sensitivity disks is referred to as the zone of:

A) inhibition
B) beta hemolysis
C) susceptibility
D) gamma hemolysis
E) alpha hemolysis

3. The part of the microscope that holds the objective lenses is called the _______________.

A) condenser
B) objective
C) revolving nosepiece
D) fine adjustment

4. % concentration (expressed as a proportion or ratio) x volume needed = mass of reagent to use So... 10% (w/v) solution of sodium hydroxide x 200 mL needed = 20 grams of sodium hydroxide How many grams of sodium hydroxide are required to prepare a 200 ml solution of a 10% (weight per volume) solution? (Atomic weights: Na = 23; 0 = 16; H = 1)

A) 4g
B) 40 g
C) 20g
D) 10g
E) 80 g

5. The dematiaceous molds can be broadly separated into two major groups: the agents of chromomycosis that grow more slowly, maturing only after 7 days or more of incubation, and the more rapidly growing species that most commonly are clinically insignificant commensals or contaminants when recovered from clinical specimens, but in rare situations may cause opportunistic infections called phaeohyphomycosis.
Dematiaceous molds can be broadly separated into two major groups; the agents of chromomycosis and clinically insignificant commensals or contaminants. The agents of chromomycosis grow: more slowly than; more rapidly than; or generally at the same rate as the clinically insignificant commensals or contaminants?

A) more slowly than
B) more rapidly than
C) generally at the same rate as

Solutions: