Laboratory Operations

1.

1 point

A standard electronic file format recommended for transmitting data from the laboratory information system to an electronic medical record is:

ISBT 128

SNOMED

Health Level 7

FTP

2.

1 point

Which of the following is considered to be a variable cost in a clinical laboratory?

overtime pay

FICA

health insurance premiums

pension contributions

3.

1 point

The most important aspect of supervision is:

performing technical procedures

dealing with people

balancing the budget

writing accurate job descriptions

4.

1 point

The mean value of a series of hemoglobin controls was found to be 15.2 g/dL, and the standard deviation was calculated at 0.20. Acceptable control range for the lab is +/- 2 standard deviations. Which of the following represents the allowable limits for the control?

14.5-15.5 g/dL

15.0-15.4 g/dL

15.2-15.6 g/dL

14.8-15.6 g/dL

5.

1 point

An electrical equipment fire breaks out in the laboratory. Personnel have been removed from immediate danger, the alarm has been activated. What is the next action to be taken?

evacuate the facility

extinguish fire with type A extinguisher

contain the fire by closing the doors

lock all windows and doors in the immediate area

6.

1 point

Which of the following parameters of a diagnostic test will vary with the prevalence of a given disease in a population?

specificity

accuracy

precision

sensitivity

7.

1 point

Which of the following is an indirect cost?

PT test material

office supplies

IT support

equipment rental

8.

1 point

An example of personal protective equipment (PPE) for handling hazardous chemicals is:

eyewash or safety shower

fume hood

latex or vinyl gloves

neoprene or nitrile gloves

9.

1 point

Your friend calls and asks you to access his test results. Which of the following does this violate?

CAP

The Joint Commission

HIPAA

CLIA

10.

1 point

Which of the following statements about immunoassays using enzyme labeled antibodies or antigens is correct?

the enzyme label is less stable than an isotopic label

quantitation of the label can be carried out with a spectrophotometer

the enzyme label is not an enzyme found naturally in serum

inactivation of the enzyme is required

11.

1 point

Which of the following forms of exposure places a a technologist at the highest risk for infection with human immunodeficiency virus (HIV)?

splash (eg, infected serum spill onto intact skin)

needlestick (eg, from AIDS contaminated needle)

ingestion (eg, mouth pipetting of positive serum)

aerosol inhalation (eg, AIDS patient's sneeze)

12.

1 point

In electrophoretic analysis, buffers:

stabilize electrolytes

act as a carrier for ions

produce an effect on protein configuration

maintain basic pH

13.

1 point

The selectivity of an ion-selective electrode is determined by the:

properties of the membrane used

magnitude of the portential across the membrane

solution used to fill the electrode

internal reference electrodes

14.

1 point

The term used to describe reproducibility is:

sensitivity

specificity

accuracy

precision