An increased cardiac output causes the: 1. C(a-v)O2 to ...

[futuristic]

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]

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.

[futuristic]

Gracias!

[nguyenhoanhat]

TYSM