Exam Preview for 2362: A Tale of Two Time Constants: The Best of Ti

A Tale of Two Time Constants: The Best of Times and the Worst of Times

Please note: exam questions are subject to change.

1. According to the presentation, what does the concept "gas takes longer to come out than to go in" refer to? The time constant required for exhalation Differences in inspiratory and expiratory pressures Variability in lung compliance during inhalation The need for elevated PEEP settings
2. What is a primary goal of using CMV with PIP and PEEP in lung disease management? To reduce airway resistance To lower inspiratory pressures To recruit collapsed and non-ventilated lung units To increase tidal volume
3. What are examples of obstructive lung diseases that typically require longer I-times? Sarcoidosis Pulmonary fibrosis Asthma, COPD Scoliosis
4. What is a potential benefit of lowering the HFOV rate in diseases with long expiratory time constants? It increases the inspiratory pressure It shortens inspiratory time, promoting faster gas exchange It provides more time to allow gas to enter, improving alveolar recruitment It reduces tidal volume
5. What effect does reducing inspiratory time (I-time) have on expiratory time? It shortens expiratory time It lengthens expiratory time It reduces tidal volume It increases inspiratory pressure