Author Question: Which of the following factors affect cardiac performance? 1. Preload 2. Afterload 3. Contractility ... (Read 27 times)

luminitza · **on:** Jul 16, 2018

Which of the following factors affect cardiac performance? 1. Preload 2. Afterload 3. Contractility 4. Cardiac output

a. 1 and 2 only
b. 1 and 3 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4

Question 2

Which of the following bedside assessment of respiratory muscle strength is commonly used on ventilated patients?

a. Tidal volume
b. Maximal inspiratory pressure
c. Minute ventilation
d. Respiratory rate

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

Answer to Question 1

ANS: C
Cardiac performance is affected by preload, contractility, and afterload, and is evaluated by the measurement of cardiac output.

Answer to Question 2

ANS: B
Two values commonly used for bedside assessment of respiratory muscle strength are vital ca-pacity (VC) and maximal inspiratory pressure (MIP).