Which of the following is true of a chest radiograph?
a. Lateral films are shot through one side of an upright patient.
b. AP films are typically taken in the x-ray department.
c. PA films artificially increase the size of the heart shadow.
d. Lateral decubitus films are shot with the patient lying supine.
Q. 2 What effect would a substantial left-sided CDH have on pulmonary function test findings?
a. A restrictive pulmonary disorder
b. An obstructive pulmonary disorder
c. An equally restrictive and obstructive disorder
d. A restrictive disorder with increased DLCO
Q. 3 Sleep apnea would be diagnosed in a patient who has which of these findings?
1. More than 15 apnea episodes per hour of sleep
2. More than 5 apnea episodes per hour over an 8-hour period
3. More than 75 of the apneas are obstructive.
4. More than 75 of the apneas and hypopneas are obstructive.
a. 1, 4
b. 2, 3
c. 2, 3, 4
d. 1, 3, 4
Q. 4 After the inhalation of a bronchodilator, what percentage change in peak expiratory flow (PEFR) would be required to demonstrate reversible airflow limitation consistent with asthma?
a. 20
b. 10
c. +10
d. >20
Q. 5 The Charleston bending brace is preferred over other braces because it:
1. is worn only 23 hours a day.
2. is worn for 8 to 10 hours at night.
3. is worn at night, when human growth hormone level is highest.
4. corrects any associated upper airway obstruction.
a. 1
b. 2
c. 2, 3
d. 1, 3, 4
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