To diagnose chronic obstructive pulmonary disease (COPD), doctors typically use spirometry to measure your lung function. They usually also perform other tests to monitor the damage to your lungs.

This breathing test can detect COPD in its earliest ... called the forced vital capacity (FVC). The test also measures how much you exhaled in the first second, known as FEV1.

We've all felt winded when taking the stairs or dealt with a cough from time to time. But if these issues linger, they could ...

The test is the shortest of the various breath tests (10 ... Breath samples will then be collected every 15 minutes for up to 2 to 4 hours, with measurement of hydrogen in the breath samples.

He says the most reliable test is known as a lung function testing - which is performed by breathing through a tube to measure the efficiency of air flow. "There are other breathing tests ...

"The van enables us to measure in real time the impact of legal ... Then they return to the van for 13 breath tests over two hours and a series of tests to gauge how high they feel.