Basics of Mechanical Ventillation

Question 1

What are the 3 goals of mechanical ventilation?

Answer 1

• Maintain alveolar ventilation
• Correct hypoxemia
• Decrease work of breathing

Question 2

What are the 3 factors that control breath?

Answer 2

• Pressure
• Volume
• Flow

Question 3

What are the 4 parts of a breath?

Answer 3

• Trigger
• Control variable
• Cycle
• Baseline

Question 4

What is the pressure trigger?

Answer 4

Patient creates enough negative pressure to initiate breath

Question 5

What is the flow trigger?

Answer 5

• Ventilator initiates breath when there is a decreased expiration