Performs the following tests:  

screening spirometry - to evaluate presence of obstructive airway
defect or presence of COPD ( chronic obstructive pulmonary disease)
-chronic bronchitis,  and  severity ( such as mild, moderate, severe  or
very severe or end-stage COPD).

pre- and post- bronchodilator spirometry - to evaluate presence of
bronchial airway hyperactivity or hyper-responsiveness.

lung volumes (plethysmography,  or for claustrophobic patients,
the nitrogen wash-out )
- to evaluate presence of  lung hyper-inflation  
or restrictive lung disease, and  presence of significant  air-trapping.
Plethysmography provides more precise assessment of lung volumes.

DLCO or lung diffusion capacity - helps  determine  lung's ability  to
absorb oxygen.   - helps determine  severity of emphysema  and  
progression of  interstitial lung disease,  pulmonary hypertension  and  
drug toxicity  to  the lungs.

pulmonary function test is the gold standard in  diagnosing  
chronic obstructive pulmonary disease (COPD) and determines the
severity of COPD. This test helps establish the presence and severity of
emphysema, bronchial asthma,  restrictive lung disease, and the
progression of pulmonary sarcoidosis and  other interstitial lung diseases.

Methacholine Challenge Test -  assists in the diagnosis or exclusion of
bronchial asthma.
Onslow Medical Specialists
Jacksonville, NC  
Pulmonary Function Laboratory
VMax Encore Pulmonary Function and Vmax 229 Metabolic/
Pulmonary Function Equipments