Spirometry is a simple test that measures how much (volume) and how fast (flow) you can move air into and out of your lungs. This test tells your doctor how healthy your lungs are, and it can also help find lung damage before it is untreatable. Spirometry can help your doctor decide why you have difficulty breathing, a nagging cough or get many breathing-related infections. These can be symptoms of lung disease, so don't ignore them, call about a spirometry test today.