Here is a sample of the answers for Chapter 44 of the Egan’s Workbook. For rest of the answers, check out our Workbook Helper. We have both the 10th and 11th Edition available.
1. The inability to maintain either the normal delivery of oxygen to the tissues or the normal removal of carbon dioxide from the tissues.
2. A. PaO2 < 60 mm Hg (on room air at sea level), B. PaCO2 >40 mm Hg (in otherwise healthy individuals on room air at sea level)
3. A. Type I is acute hypoxemic failure, B. Type II is hypercapnic failure
4. A pH 7.45, PaCO2 33 mm Hg, PaO2 40 mm Hg represents acute respiratory alkalosis with hypoxemia. Remember that the most common cause of respiratory alkalosis is hypoxemia. Admittedly, 40 is pretty severe hypoxemia. You could also see this in a patient with a higher PO2, especially if they were on oxygen.
5. PaCO2 and alveolar ventilation vary inversely.
6. A. Decreased ventilatory drive: 1. Drug overdose/sedation, 2. Sleep apnea. B. Respiratory muscle fatigue/failure, 1. Guillain-Barré, 2. Myasthenia gravis. C. Increased work of breathing, 1. COPD, 2. Asthma
7. Hypermetabolic states, like severe burns
For the rest of the answers, check out the Workbook Helper.
10th & 11th Edition