Here is a sample of the answers for Chapter 28 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. 200,000-300,000
2. –These grow in the deep veins of the pelvis or legs. A small 3% will form in the right heart. The cause is often stasis (slow blood flow). The immobilized patient and long distance air travelers are at risk. Coagulation also plays a role. Clots can form in the lung if the right atrium does not pump effectively; this is caused by atrial arrhythmias.
–The most at-risk patients are those who are older or bedridden. If one has experienced trauma or heart failure, this naturally adds to their risk.
3. The heart has to work a considerable amount harder if the lung’s blood vessels are blocked. The heart will be deprived of adequate energy if oxygenation is affected. Low blood flow can lower cardiac output.
4. Increased right heart pressure, increased resistance, poor cardiac output.
5. A. Dyspnea
B. Pleuritic pain
6. A. Tachypnea
B. Crackles
C. Tachycardia
7. A. Tachycardia
B. ST-segment depression
8. While x-ray can be used to rule out pneumothorax, among other things, it is frequently abnormal and primarily never specific enough to the case.


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