स्पाइरोमेट्री (Spirometry) कैसे की जाती है ? How Is Spirometry Done? -- An Informational Video.

This video provides step by step instructions of what is expected from the patient during the spirometry test (Pulmonary Function Test, PFT). Spirometry (Pulmonary Function Test, PFT) is an effort dependent test that evaluates functions of the lungs but requires good coaching.