Pulmonary Function Lab

Hours of Operation:
Monday: 7am - 4pm
Tuesday: 7am - 4pm
Wednesday: 7am - 4pm
Thursday: 7am - 4pm
Friday: 7am - 4pm
Sat & Sun: Closed
Phone: 443-849-2686
Fax: 443-849-2254
Main Hospital
6701 N. Charles St.
Suite 3100
Baltimore, MD 21204

Services Offered:
All services must be scheduled in advance, 24 hr notice is requested for outpatients.
  • Pre-op evaluation
  • Spirometry pre/post bronchodilator
  • Spirometry
  • Bedside spirometry pre/post bronchodilator
  • Thoracic gas volume (VTG) (Lung Volume Testing)
  • Diffusing capacity (DLCO)
  • Maximum voluntary ventilation
  • Arterial blood gases
  • Arterial blood gases with exercise
  • Flow volume curves
  • Flow-volume curves pre/post bronchodilator
  • Oximetry
  • Walking oximetry
  • Peak flow rates (PEFR)
  • Airway resistance
  • Negative Inspiratory Force (NIF)
Pulmonary function tests are used:
  • To help diagnose and evaluate lung disease
  • To determine the appropriateness and effectiveness of new and current treatments
  • To measure how severely the lung is damaged
In addition, pulmonary function tests are important to assess the health of a person's lungs before chest surgery.

There are two general types of pulmonary function tests:
  • Ventilation tests
  • Arterial blood gas studies
Before having a ventilation type of pulmonary function test, it is best to avoid the following activities:
  • Eating a heavy meal or solid food for four to six hours
  • Smoking for four hours
  • Exercising for four hours
In addition, unless advised to do so by your doctor, you should not take any medication for four hours before the test.




Greater Baltimore Medical Center | 6701 North Charles Street | Baltimore, MD 21204 | (443) 849-2000 | TTY (800) 735-2258
© 2017  GBMC. This website is for informational purposes only and not intended as medical advice or a substitute for a consultation with a professional healthcare provider.