This assignment will help you demonstrate your knowledge and understanding

1. High positive end-expiratory pressure and extended inspiratory time may cause an elevated PVR. This occurs because: A. Shunt is increased B. Zone I lung volume is increased C. Zone III lung volume is increased D. Alveolar capillaries have collapsed 2. In cardiogenic pulmonary edema, fluid accumulates in interstitial spaces primarily because of: A. Increased hydrostatic pressure B. Increased capillary permeability C. Decreased plasma oncotic pressure D. Increased fluid oncotic pressure 3. Causes for abnormally high PAP accompanying an abnormally high PCWP in a hypoxic patient include: A. Hypovolemia and pulmonary vasoconstriction B. Hypovolemia and mitral valve stenosis C. Left ventricular failure and pulmonary vasoconstriction D. Hypervolemia and low left ventricular preload 4. If a malpositioned pulmonary artery catheter resides in the pulmonary artery but cannot be adjusted to obtain a PCWP, the best estimation for this pressure (assuming PVR is normal) is: A. Systolic pulmonary artery pressure B. Central venous pressure C. Mean pulmonary artery pressure D. Diastolic pulmonary artery pressure

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