Pulse oximetry is used to measure ______: A: forced expiratory volume B: tidal volume C: end-tidal CO2 D: oxygen saturation of blood

Asthma is characterized by which of the following( ) A: Inspiratory dyspnea B: Three depression sign C: Mixed dyspnea D: Expiratory dyspnea E: None of above

Which<br/>volume remains in the lungs after a tidal volume () is expired? () A: Tidal volume B: Vital capacity C: Expiratory reserve volume D: Residual volume E: Functional residual capacity

The pulmonary volume that buffered the change of alveolar partial pressure was A: Inspiratory reserve volume B: expiratory reserve volume C: deep inspiratory volume D: residual volume E: functional residual volume

The dyspnea caused by left heart failure may present as .(More than one answer may be correct.) A: Expiratory dyspnea B: Orthopnea C: Inspiratory dyspnea D: Exertional dyspnea E: Paroxysmal dyspnea

Which<br/>one is used to evaluate the efficiency of pulmonary ventilation? () A: tidal<br/>volume B: functional<br/>residual capacity C: vital<br/>capacity D: expiratory<br/>reserve volume E: alveolar<br/>ventilation