Preexamination Variables That May Be Introduced into a Test System

question 82

Multiple Choice

Preexamination variables that may be introduced into a test system by a failure to properly calibrate and maintain centrifuges include all the following except:

• A) incomplete separation of cells and plasma or serum in samples.
• B) deterioration of chemical elements in the samples.
• C) cellular damage including hemolysis caused by excessive speed or time in the centrifuge.
• D) unacceptable results for quality control specimens.

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Definitions:

Distance

A numerical measurement of how far apart objects or points are.

Monocular Cue

Visual information that allows a person to perceive depth and distance using just one eye.

Converging

The process of coming together or uniting in agreement or similarity, often used in the context of ideas, theories, or physical entities.

Double Image

A visual effect in which the same object is perceived twice, either due to optical reasons or conditions affecting the viewer's perception.