| DIAGNOSTIC | DESCRIPTION | PURPOSE |
| Chest imaging | Use of radiologic machines to
take pictures of your lungs, such as x-ray or High Resolution Computer
Tomography (HRCT) | To view lung
structures look for scar tissue and assess patterns of scarring
|
| Pulmonary function
test | A test using a device with a
mouthpiece to measure a patient's breathing capacity | To measure the degree of
impairment in lung function |
| Arterial blood gas test
| A measurement of oxygen and
carbon dioxide levels in blood taken from an artery in the wrist
| To determine how well the
lungs are performing vital gas exchange
|
Exercise Test (or
desaturation study) | A test in which
the patient is monitored while using a treadmill or stationary bicycle
| To measure how well the lungs
and heart respond to physical activity and evaluate oxygen levels with
exertion |
| Six Minute Walk
Test (SMWT) | A test where a patient walks
on a flat surface as far as possible in six minutes | To measure the distance you
are able to walk as well as lung function during the walk.
|
| Bronchoalveolar lavage (BAL)
| A "lung-washing" procedure
conducted through a flexible tube (bronchoscope) inserted into the
airways through the nose or mouth; fluid (salt water) is injected into
the lungs and then removed for inspection
| To examine cells and fluid to
look for signs of inflammation in the lungs, or markers of disease
activity |
| Lung biopsy
| A procedure in which a tissue
sample is obtained through a bronchoscope (see BAL, above) or by means
of a small surgical incision (VATS- video-assisted thoracic surgery)
between the ribs (open-lung biopsy)
| To obtain a sample of lung
tissue for direct examination
|