If the Image of an Aerosol Ventilation Study Shows Activity

question 18

Multiple Choice

If the image of an aerosol ventilation study shows activity in the bronchi and the stomach, the technologist

• A)checks the particle size of the aerosol to be certain it is within the limits.
• B)performed the perfusion study first.
• C)continues with the study because this is normal.
• D)adjusts the nebulizer flow rate.

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Definitions:

Elliptical

Having an oval shape or relating to an ellipse; also used metaphorically to describe speech or writing that is obscure or lacks completeness.

Perceptual Constancy

The brain's ability to perceive objects as unchanging despite changes in viewing conditions, such as distance or lighting.

Retinal Images

Images formed on the retina of the eye as the result of the refraction of light by the cornea and lens.

Relative Size

A perceptual cue that allows the determination of depth and distance by comparing the size of objects with known sizes.