Author Question: An increased cardiac output causes the: 1. C(a-v)O2 to decrease. 2. SvO2 to increase. 3. total ... (Read 55 times)

futuristic · **on:** Jul 16, 2018

An increased cardiac output causes the:

1. C(a-v)O2 to decrease.
2. SvO2 to increase.
3. total O2 delivery to decrease.
4. O2ER to increase.
a. 1
b. 2, 3
c. 3, 4
d. 1, 2

Question 2

The major pathologic or structural changes of the lungs associated with myasthenic crisis include:

1. alveolar consolidation.
2. airway obstruction.
3. mucus accumulation.
4. atelectasis.
a. 1, 4
b. 2, 3
c. 2, 3, 4
d. 1, 2, 3, 4

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

Answer to Question 1

D
As cardiac output increases, less oxygen is extracted from the blood. Because of this, the C(a-v)O2 decreases and SvO2 increases. Increased cardiac output would also increase total oxygen delivery and decrease the oxygen extraction ratio.

Answer to Question 2

D
Alveolar consolidation, airway obstruction, mucus accumulation, and atelectasis are structural changes in the lungs associated with a myasthenia crisis.