When a Physician Suspects That a Patient Has a Protozoal

question 78

Multiple Choice

When a physician suspects that a patient has a protozoal or parasitic infection, what is the minimum number of stool specimens that need to be examined?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Observer Drift

A phenomenon that results in a different behavior being observed and recorded than the one originally targeted. Observer drift can occur even when a target behavior is operationally defined and solidly passes the stranger test.

Objectivity Lapse

A failure to maintain neutrality or impartiality, especially in making judgments or decisions.

Occurrence Subjectivity

The degree to which perceptions or analyses of events are influenced by personal feelings, tastes, or opinions.

Reactive Effects

The changes in behavior or responses that occur as a result of being observed or knowing that one is part of a study, often considered a form of bias.