Week 10

Question 1

Compliance Calc

Answer 1

Volume / Pressure

Question 2

Compliance of the Lung

Answer 2

0.2 L / cmH2O

Question 3

Compliance of the Chest

Answer 3

0.2 L / cmH2O

Question 4

Compliance of the Whole Respiratory system

Answer 4

0.1 L / cmH2O

Question 5

What limits Inhalation

Answer 5

Compliance of the Lungs

Question 6

What limits Exhalation

Answer 6

Compliance of the Chest

Question 7

Laplace Law

Answer 7

P = 2T / R

Question 8

Hysteresis

Answer 8

Difference in curves of Deflation and Inflation

Question 9

Alveolar P is equal to

Answer 9

Elastic P + Pleural P

Question 10

Equal Pressure Point (EPP)

Answer 10

When Pressure inside the Alveolus is the same as the pressure outside the Alveolus (PA = Ppl)

Question 11

Alveolar Pressure during forced exhalation

Answer 11

60cmH20

Question 12

Respiratory membrane Layers

Answer 12

1) Surfactant layer
2) Alveolar epithelium
3) epithelial basement membrane
4) Interstitial space
5) capillary basement membrane
6) Capillary endothelium

Question 13

PO2 / PCO2 Artery

Answer 13

O2 = 95mmHg
CO2 = 40mmHg

Question 14

PO2 / PCO2 Alveolus

Answer 14

O2 = 100mmHg
CO2 = 40mmHg

Question 15

PO2 / PCO2 Capillary/Venous

Answer 15

O2 = 40mmHg
CO2 = 46mmHg

Question 16

PO2 / PCO2 Pressure Gradient

Answer 16

O2 = 60mmHg
CO2 = 6mmHg

Question 17

Transit time of Blood in Pulmonary Capillaries

Answer 17

0.75 seconds

Question 18

Henry’s Law

Answer 18

Gas = a (sol fac) * Pgas

Question 19

Solubility factor for O2

Answer 19

0.03/L H2O/mmHg

Question 20

Solubility factor for CO2

Answer 20

20x more than O2
(0.6-ish)

Question 21

O2 consumption of Body

Answer 21

250 ml/min

Question 22

CO2 Production Body

Answer 22

200 ml/min