Lung Volumes and Capacities

Question 1

____ this zone is from the nose to terminal bronchioles measuring 150mL. Also called the conducting zone.

Answer 1

Anatomic Dead Space

Question 2

___ is the respiratory unit of the lung that does not undergo gas exchange due to V/Q mismatch

Answer 2

Alveolar Dead Space

0mL

Question 3

Anatomic Dead Space + Alveolar Dead Space is called _____

Answer 3

Physiologic Dead Space

Question 4

The 3 areas that are capable of gas exchange.

Answer 4

1. Respiratory bronchiole
2. Alveolar Ducts
3. Alveolar sacs

Question 5

Pneumocyte that plays a role in gas exchange.

Answer 5

Type I

Type II is for surfactant production

Question 6

___ cells in the lungs that produce GAGs and metabolize air-borne toxins

Answer 6

Clara cells/Club cells

Question 7

____ are the alveolar macrophages

Answer 7

Dust cells

Question 8

What is the formula to calculate the Physiologic Dead Space?

Answer 8

VD = VT x [(PaCO2 - PECo2)/PaCO2]

Question 9

What is the formula to determine the minute ventilation?

Answer 9

MV = VT x RR

Question 10

What is the formula for Alveolar Ventiation?

Answer 10

VA = (VT - VD) x RR

Question 11

___ is the volume during maximal exhalation

Answer 11

Residual Volume

Question 12

____ is the maximum amount that you can inhale or exhale

Answer 12

Vital Capacity

Question 13

___ is a marker of lung function; resting volume also

Answer 13

FRC

Question 14

Volumes and capacities that cannot be measured by spirometry

Answer 14

RV, FRC, TLC