Medical Terminology Simplified

Radiographic procedure that uses electromagnetic energy to produce multiplanar,

cross-sectional images of the body

In the respiratory system, MRI is used to produce a scan of the chest and lungs. MRI does

not require a contrast medium, but it may be used to enhance visualization of internal

structures.

Test that diagnoses sleep disorders by recording various aspects of sleep, such as eye

and muscle movements, respiration, and electroencephalography (EEG) patterns

(See Fig. 4–10.)

Group of tests that measure the capacity of the lungs and the volume of air during

inhalation and exhalation

PFTs can diagnose lung diseases, measure the severity of lung impairments, and check

to see how well treatment for a lung disease is working.

Common lung function test that measures and records the volume and rate of

inhaled and exhaled air and is used to assess pulmonary function by means of a

spirometer

Spirometry is most useful when assessing for obstructive lung diseases, especially asthma

and chronic pulmonary disease (COPD). (See Fig. 4–11.)

Additional Medical Terms • CHAPTER 4 137

Figure 4-9Bronchoscopy of the left bronchus.

magnetic resonance

imaging (MRI)

măg-NĔT-ĭc RĔZ-

ĕn-ăns ĬM-ĭj-ĭng

polysomnography (PSG)

pŏl-ē-sŏm-NŎG-ră-fē

poly-: many, much

somn/o: sleep

-graphy: process of

recording

pulmonary function

tests (PFTs)

PŬL-mō-nĕ-rē

spirometry

spī-RŎM-ĕ-trē

spir/o: to breathe

-metry: act of measuring

Viewing

piece

Bronchoscope

Channel in the flexible tube to

accommodate biopsy forceps

and instruments

Left
bronchus
Visual
examination
of left bronchus