Following are terms that specify a type of lung size and/or activity. More specific definitions may be found in individual articles.
Eupnea – normal breathing Apnea – absence of breathing Bradypnea – decreased breathing rate Dyspnea or shortness of breath – sensation of respiratory distress Hyperaeration/Hyperinflation – increased lung volume Hyperpnea – fast and deep breathing Hyperventilation – increased breathing that causes CO2 loss Hypopnea – slow and shallow breathing Hypoventilation – decreased breathing that causes CO2 gain Labored breathing – physical presentation of respiratory distress Tachypnea – increased breathing rate Orthopnea – Breathlessness in lying down position relieved by sitting up or standing Platypnea – Breathlessness when seated or standing, relieved by lying flat Trepopnea – Breathlessness when lying flat relieved by lying in a lateral position Ponopnea – Painful breathing
See also Control of respiration
