Free ASCP ASCP-MLT Practice Exam with Questions & Answers | Set: 7

Deviations from Beer's Law are caused by:

This is the total magnification of the high dry objective lens.

Small, dense LDL is most likely to interact with arterial walls, leading to deposition of cholesterol, and initiating or worsening atherosclerosis. Small, dense LDL is associated with more than a three-fold increase in the risk of coronary heart disease.

Large, buoyant LDL is less atherogenic than small, dense LDL.

The LDL phenotype A is normal. It is the so called 'B' pattern that is associated with increased risk.

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

A person classified as an ultrarapid metabolizer (UM) has a polymorphism that enhances the catabolic activity of the enzyme. This means that a UM would need more of the drug to achieve a 'normal' level since he/she is rapidly metabolizing the drug.

Chem

In therapeutic drug monitoring, a person who is classified as an ultrarapid metabolizer (UM) would need __________ of a drug metabolized by that enzyme.

To make a 1 : 10 dilution, 270 µL of diluent should be added to 30 µL of sample, .

A spinal fluid that is slightly hazy is briefly examined microscopically. The technologist performing the count decides to make a 1:10 dilution using 30 µL of sample. What volume of diluent should be used?

Cryptococcus neoformans is the MOST likely identification of the encapsulated yeast in this question. C. neoformans is urease +, and grows brown colonies on birdseed agar. In addition, India ink stain can also be used for Cryptococus spp. identification.

What is the MOST likely identification of an encapsulated yeast in a blood culture bottle from a patient with septicemia with the following additional culture information?:

Failure to produce germ tubes

Urease positive

Produced brown pigment on bird seed agar

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

Which of the following CD markers is NOT present on a normal mature T cell?

Assuming an alpha hemolytic reaction (not well seen in the image), viridans streptococcus and S. pneumoniae are the two possible responses. However, these colonies are far too mucoid for viridans streptococci; therefore, S. pneumoniae is the most likely choice. Also, the colonies are much too large and the hemolytic reaction is wrong for S. pyogenes or S. agalactiae.

A patient was admitted to the hospital recently with an obvious infection. A sputum specimen was submitted and the microbiologist inoculated it to sheep blood agar. Based on the colony morphology and the alpha hemolysis seen in the image to the right, the most likely identification is:

Primary- Target glands (such as thymus, thyroid, parathyroid, etc.)

Secondary- Pituitary gland

Tertiary- Hypothalamus

Match the type of endocrine dysfunction with the appropriate organ:

1. Target gland

2. Pituitary gland

3. Hypothalamus

The role of the laboratory supervisor or manager is to

This scenario's answer can be calculated by first deciding what the total quality control labor costs are as well as what the total consumable costs are. In this case, if quality control is run 3 times per day, a total of 1095 quality control runs are performed each year. The direct labor cost of $2.63 multiplied by 1095 quality control runs equals $2879.85 per year in quality control direct labor. The hospital pays $354.00 per month on quality control consumables, which equals $4248.00 per year. The total quality control costs in a year are equal to $2879.85 + $4248.00 = $7127.85. If 76,000 new chemistry tests panels are peformed each year, the total quality control cost per new chemistry test panel will be $0.09.

General Hospital is considering the addition of a new chemistry panel containing 12 tests. The laboratory is asked to calculate the total cost of quality control per new chemistry test panel. Quality control must be performed 3 times per day (every 8 hours). The labor cost per quality control test for this panel is $2.63. A month's worth of quality control reagent costs $354.00. What is the total quality control cost per new chemistry test panel if 76,000 of these new panels are performed each year?

Albumin is a "negative" acute phase protein since it is found in decreased levels during acute phase response. Alpha-1-antitrypsin, fibrinogen, and ceruloplasmin are all "positive" acute phase proteins that are found in increased levels during acute phase response.

Which one of the following usually shows a decrease during an acute phase response?

The lactophenol blue mount reveals tiny, ovoid microconidia, arranged in a daisy-head pattern at the tip of a straight conidiophore. This appearance is characteristic of the mold form of Sporothrix schenckii. By moving the focus up and down in a microscopic preparation, delicate hair-like attachments may be observed for each conidium.

The mold form of Coccidioides immitis produces delicate hyphae that break up into arthroconidia separated by empty cells, giving an alternatively staining appearance.

The mold form of Blastomyces dermatitidis is characterized by the production of single, smooth microconidia, each borne on a single, thin conidiophore ("lollipops").

The mold form of Histoplasma capsulatum is recognized by the production of large, echinulate macroconidia, appearing as a prickly surface.

The ovoid microconidia arranged in a daisy-head pattern at the tip of a a straight conidiophore, observed in the photomicrograph on the right, is characteristic of which of the following dimorphic molds?

Darkfield microscopy allows a lower limit of resolution than bright-field microscopy which helps the tiny spirochetes to be seen in patient samples. In darkfield microscpy, there is a dark background where directly transmitted light is excluded by a dark-field condenser allowing only scattered light to be focused on the specimen. With dark-field microscopy bacteria appear luminous against a dark background.

Which of the following microscopic techniques is best suited for direct examination of the infectious agent of syphilis?