Here is a sample of the answers for Chapter 21 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. A. Air absorbs little energy and looks dark or black.
B. Fat absorbs less energy than bone or tissue and looks darker than the tissue, medium gray.
C. Tissue absorbs a small amount and looks medium gray.
D. Bone or metal is nearly white. 

2. Outpatient
A. Severe persistent cough
B. Unexplained dyspnea
C. Hemoptysis
A. ET placement
B. Confirm placement of PAC or central line
C. Sudden increase in peak pressure on ventilator 

3. Symptoms that precede radiograph changes by 12 to 24 hours make up what is known as lag time. As the patient’s health improves, the case is the opposite. 

4. A. 1.PA film in front, energy behind; PA= posterior to anterior
2.AP film in back, energy in front (portable films)
B. It might appear enlarged
C. Portables are easier to do on critically ill patients 

5. Compare the position of the ends of the clavicles (anterior structure) to that of the spinous processes (posterior structure)


For the rest of the answers, check out the Workbook Helper

Workbook Helper

10th & 11th Edition