Exam Preview for 2367: Fantastic Voyage: Why and How We Explore the

Fantastic Voyage: Why and How We Explore the Lungs During Mechanical Ventilation

Please note: exam questions are subject to change.

1. Which combination of changes characterizes the effects of volutrauma on lung structures? Narrowed bronchioles and collapsed alveolar ducts Dilation of terminal bronchioles and coalesced alveoli Reduced alveolar surface tension and shrunken alveolar ducts Thicker alveolar walls and reduced bronchiolar diameter
2. Hypoxic injury to tissues occurs under which condition? Blood supply is adequate but lacks sufficient oxygen There is plenty of oxygen in the blood but low blood supply Blood and oxygen supplies are both excessive There is an imbalance of carbon dioxide in the blood
3. In Electrical Impedance Tomography (EIT), how are electric impulses affected by objects of different density within the body? They are completely absorbed by dense objects They are bent and redirected based on the density of tissues They pass through all tissues uniformly, regardless of density They measure blood oxygenation rather than density
4. Pulmonary vascular resistance (PVR) is affected directly by which of the following physiological changes? Changes in blood pressure Changes in heart rate Changes in lung volume Changes in oxygen saturation
5. In predicting or diagnosing injury, high-speed computerized tomography (CT) is particularly useful for which of the following purposes? Its ability to monitor blood flow in real time Its portability for use outside of hospital settings Its capability to analyze genetic information Its rapid acquisition of high-resolution images of internal injuries