Author Question: The polysomnographic tracing of a patient with mixed apnea is shown by which of the follow-ing? ... (Read 39 times)

mia · **on:** Jul 16, 2018

The polysomnographic tracing of a patient with mixed apnea is shown by which of the follow-ing?

a.
b.
c.
d.

Question 2

Which of the following represents the polysomnographic tracing of a patient with obstructive sleep apnea?

a.
b.
c.
d.

blfontai · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
With mixed apnea, there is cessation of airflow at the nose and mouth. Initially, there is an ab-sence of respiratory effort, which is the central component, followed by at least 2 cycles of res-piratory effort with continued absence of airflow, which is the obstructive component.

Answer to Question 2

ANS: C
The polysomnographic tracing of a patient exhibiting obstructive sleep apnea shows paradoxical movement of the chest and abdomen and recurrent complete airway obstructions, leading to ox-ygen desaturation.