Expiratory reserve volume is the amount of extra air above normal that you exhale during a forceful breath out. ERV is part of the data gathered in pulmonary function tests used to diagnose ...

Expiratory wheezing occurs when exhaling or breathing out. Inspiratory wheezing happens when inhaling or breathing in. A wheeze is a whistling noise from the airways. Often the sound is high-pitched ...

Tidal volume is the amount of air breathed in with each normal breath. The average tidal volume is 0.5 litres (500 ml). Inspiratory reserve volume is the maximum amount of additional air that can be ...

While standard PFTs require adjustment for SCI pts, forced vital capacity (FVC)and Forced Expiratory Volume in the first second (FEV1) and negative inspiratory force [NIF]) can be assessed ...

The delivery of positive-pressure–ventilator support without an endotracheal tube was first studied in the 1930s. 1 Now known as noninvasive positive-pressure ventilation (NPPV), it can be used to ...

A spirometer need not be a large and expensive device, says Gerhard Stelzer, outlining the design for a mobile version for tests at home. Patients with breathing difficulties can take a lung function ...

Please provide your email address to receive an email when new articles are posted on . For individuals with mild to moderate-severe cystic fibrosis, relying solely on reduced breathing reserve may ...