Under Which of the Following Conditions Would You Postpone a Diffusing

question 40

Multiple Choice

Under which of the following conditions would you postpone a diffusing capacity test?
1) Just before the test, the patient smoked two cigarettes.
2) Just before the test, the patient had an episode of severe coughing.
3) Just before the test, the patient had a long wait at a busy bus stop.

• A)1 only
• B)1 and 3 only
• C)2 and 3 only
• D)1, 2, and 3

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Definitions:

D'Arsonval Movement

A type of electromechanical mechanism used in analog meters for measuring electric current or voltage, based on a coil that rotates in a magnetic field.

Moving Iron

A type of electromechanical instrument or actuator that operates on the principle that an iron piece can be moved by magnetic forces within a solenoid or a set of coils.

Concentric Vane

A component typically used in airflow systems, consisting of blades or vanes arranged around a common center point to direct or measure flow.

Multirange Ammeter

An ammeter capable of measuring current over various ranges with the ability to adjust sensitively to different maximum current levels.