Mechanical Ventilation

Question 1

What is the definition of Total Lung Capacity?

Answer 1

Volume of air that the lungs can hold with maximal inspiration. 5500-6000ml

Question 2

What is the definition of Tidal Volume?

Answer 2

Volume of air moved into and out of the lungs with each normal breath. 7ml/kg

Question 3

What is the definition of Inspiratory Reserve Volume?

Answer 3

Volume of air that can be maximally inspired above a normal inspiration. 3 liters

Question 4

What is the definition of Expiratory Reserve Volume?

Answer 4

Volume of air that can be macimally exhaled after a normal expiration. 1 liter

Question 5

What is the definition of Vital Capacity?

Answer 5

The amount of air forced out of the lungs after a maximal respiration.4.6 -4.8 Liters

Question 6

What is the definition of Residual Volume?

Answer 6

Volume of air remaining in the lungs after a maximal expiration. 1 Liter

Question 7

What is the definition of Functional Residual Capacity?

Answer 7

Volume of air remaining in th elungs at the end of a normal expiration ( RV+ERV)

Question 8

What is Anatomical Dead Space?

Answer 8

Volume of air that remains in the conductive region.

Question 9

What is Minute Ventilation?

Answer 9

The amount of air expired per min.

Question 10

What is Physiololgical Dead Space?

Answer 10

The anatomic dead space and the alveolar dead space.

Question 11

What is Lung Compliance?

Answer 11

Measure of expandability.

Question 12

What are 4 Extrinsic factor affecting lung compliance?

Answer 12

Kyphosocoliosis
Chest trauma
Obesity
Ventilator tubing

Question 13

What are 5 Intrisic factors affecting lung compliance?

Answer 13

Atelectasis
Pneumonia
Pulmonary Edema
Pulmonary Fibrosis
ARDS