A 6-foot-tall, 140-pound, 28-year-old female patient has come to the emergency department with a complaint of a sudden sharp pain in the right upper chest followed by shortness of breath

The pain originated while she participated in deep breathing exercises in a yoga class. The physician has determined that she has a 15% pneumothorax. How should the pneumothorax be classified?
a. Open
b. Exercise related
c. Spontaneous
d. Traumatic

C
A spontaneous pneumothorax is one that occurs suddenly and without any obvious underlying cause. Frequently, it happens in tall, thin young adults when a high lung pressure causes a surface bleb or bulla to rupture.