Which of the following are common purposes of using ventilator ...

[Mr3Hunna]

Which of the following are common purposes of using ventilator graphics? 1. To detect auto-PEEP 2. To assess effects of bronchodilators 3. To determine patient ventilator synchrony 4. To determine best FiO2
 
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

Question 2

A vital capacity (VC) value below what value indicates significant muscle weakness?
 
  a. 10 to 15 ml/kg
  b. 20 to 25 ml/kg
  c. 30 to 40 ml/kg
  d. 50 to 60 ml/kg

[parshano]

Answer to Question 1

ANS: B
Ventilator graphics clearly show many important patient-ventilator interactions, such as presence of auto-PEEP, elevated airway pressure, presence of secretions, and the general pattern and de-pendability of supported ventilation (Figure 51-8).

Answer to Question 2

ANS: A
A VC less than 10 to 15 ml/kg indicates considerable muscle weakness, which may inhibit the ability to breathe spontaneously.