ASCP ASCP-MLT Practice Test Questions Answers

The red portion of the NFPA diamond represents fire hazards. The fire classification system for NFPA is as follows:

0 - Will not burn

1 - Must be preheated for ignition; flashpoint above 200°F (93°C)

2 - Must be moderately heated for ignition, flashpoint above 100°F (38°C)

3 - Ignition may occur under most ambient conditions, flashpoint below 100°F (38°C)

4 - Extremely flammable and will readily disperse through air under standard conditions, flashpoint below 73°F (23°C)

A laboratory labels its secondary containers of hazardous chemicals using a color-coded system, with a different color representing each different type of hazard. The coding system follows the color-coding used by the National Fire Protection Agency's "fire diamond." What hazard would be represented by the red section on the hazard label?

n reporting out Gram stains, one should not go beyond what objective observation will allow. In this case, bacterial cells are observed, which are spherical and gram-positive. Their arrangement in tetrads and clusters might be helpful to the physician, suggesting staphylococci. However, one should stop short of naming staphylococci in an official report, as the large gram-positive cocci in tetrads is also suggestive of Micrococcus species, for which human infections have not been reported.

A Gram stain of the serous exudate is shown in the image. The appropriate report would read:

The intended response is Vitamin B12 and folate deficiencies. Each of these conditions lead to a megaloblastic production of the red blood cells in the bone marrow. Since vitamin B12 and folate are needed in order to produce a synchronous development of the nucleus with the cytoplasm in hematologic cells, oval-macrocytosis often occurs if these nutrients are not in adequate supply within the body. This can also affect neutrophils, allowing for the characteristic hypersegmented nucleus.

The photographic field contains several oval-macrocytes and a hypersegmented neutrophil with greater than 5 nuclear segments. Oval macrocytes are most commonly associated with pernicious anemia and malabsorption syndromes leading to vitamin B12 and folic acid deficiencies.

Clinical information relating to chronic infection, aplastic anemia, and other hematologic maligancies provide the context for the presence of the oval macrocyte.

Macrocytic erythrocytes and hypersegmented neutrophils are not present in thalassemias or in Pelger-Huet anomaly (hyposegmented neutrophils).

Conditions suggested by the macrocytes and the neutrophil in the photograph to the right include which of the following?

The microscopic features shown here represent Scopulariopsis species. In most instances, particularly if a patient does not have underlying immunologic or hematologic disease, Scopulariopsis species should be considered a contaminant when recovered from a sputum specimen. However, if there is clinical or X-ray evidence of mycotic pulmonary infection, additional daily induced sputum specimens should be obtained.

If Scopulariopsis species or any other hyaline mold is recovered from two or more successive specimens, its potential as a pathogenic agent should be considered. Scopulariopsis species have been reported as the agents of pulmonary fungus ball infections in patients with preexistent cavities and as a cause of pneumonia in patients with leukemia.

Invasive pulmonary disease by this agent has not been reported.

The fungus illustrated in this photomicrograph was recovered from an induced sputum specimen from a 74 year old man with chronic obstructive pulmonary disease. This isolate is most likely:

Protein in urine can be confirmed using sulfosalicylic acid (SSA) precipitation. The SSA reagent is added to a small volume of urine. Acidification causes precipitation of protein in the sample, which is subjectively graded as trace, 1+, 2+, 3+ or 4+. SSA reaction will detect albumin, globulins, and Bence-Jones proteins.

Which of the following would be the most appropriate method to confirm a positive protein from a urine dipstick: