Author Question: During a pulmonary function study, it was found that a patient has a sawtooth pattern on his ... (Read 77 times)

justinmsk · **on:** Jul 16, 2018

During a pulmonary function study, it was found that a patient has a sawtooth pattern on his flow-volume loop. What is this finding associated with?

a. Central sleep apnea
b. COPD
c. Obstructive sleep apnea
d. Laryngeal edema (epiglottitis)

Question 2

All of the following symptoms are commonly associated with asthma EXCEPT recurrent:

a. cough.
b. chest tightness.
c. fever.
d. wheeze.

AaaA · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

C
An inspiratory sawtooth pattern on the flow-volume loop is associated with obstructive sleep apnea. The sawtooth pattern is caused by loose tissues in the throat moving during the rapid inspiration. Patients with COPD have a distinctively slow expiratory flow pattern. A patient with laryngeal edema (epiglottitis) will often have a distinctive inspiratory stridor sound.

Answer to Question 2

C
A recurrent cough, recurrent chest tightness, and recurrent wheeze are symptoms associated with asthma.