Abstract: The frequency-dependent propagation time, or phase delay tau (f), of sonic noise transmission from the trachea to the chest wall was estimated over the 100-600 Hz frequency range using a ...

Definitions of hypoxaemia, hypoxia, type 1 respiratory failure and hyperoxaemia Definition of hypercapnia and type 2 respiratory failure Definition of acidosis (respiratory acidosis and metabolic ...

Being overweight or having certain lung diseases can interfere with images of the heart when the transducer is placed on the chest wall. Certain conditions of the heart are better seen with TEE, such ...