Pulmonary

Question 1

Tidal Volume

Answer 1

Normal breath ~500mL (M/F)

Question 2

Inspiratory Reserve Volume

Answer 2

amount a person can inspire after normal tidal volume inspiration
M~ 3000mL
F~ 1900mL

Question 3

Expiratory Reserve Volume

Answer 3

amount a person can expire after normal tidal volume exhale
M~ 1100mL
F~ 700mL

Question 4

Residual Volume

Answer 4

amount of air left in the lungs after full forced expiration
M~ 1200mL
F~ 1100mL

Question 5

Vital Capacity

Answer 5

IRV + TV + ERV

Question 6

Inspiratory Capacity

Answer 6

IRV + TV

Question 7

Functional Residual Capacity

Answer 7

ERV + RV

Question 8

Total Lung Capacity

Answer 8

IRV + TV + ERV + RV

Question 9

A patient has a functional residual capacity of 3 L, tidal volume of 650 ml, expiratory reserve volume of 1.5 L, total lung capacity of 8 L. What is the residual volume?

Answer 9

FRC = ERV + RV
FRC = 3 L
ERV = 1.5 L

FRC - ERV = RV
RV = 1500 mL

Question 10

Eupnea

Answer 10

normal/ quiet breathing

Question 11

Dyspnea

Answer 11

shortness of breath or air hunger

Question 12

Apnea

Answer 12

absence of breathing

Question 13

P(alv)

Answer 13

alveolar pressure

Question 14

PO2

Answer 14

partial pressure of oxygen

Question 15

PCO2

Answer 15

partial pressure of CO2

Question 16

P(aO2)

Answer 16

partial pressure of oxygen in arterial blood

Question 17

P(vO2)

Answer 17

partial pressure of oxygen in venous blood

Question 18

P(aCO2)

Answer 18

partial pressure of CO2 in arterial blood

Question 19

P(vCO2)

Answer 19

partial pressure of CO2 in venous blood

Question 20

P(AO2)

Answer 20

partial pressure of oxygen in alveolar gas

Question 21

P(ACO2)

Answer 21

partial pressure of CO2 in alveolar gas

Question 22

SO2

Answer 22

percent saturation of hemoglobin with oxygen

Question 23

S(aO2)

Answer 23

percent saturation of hemoglobin with oxygen in arterial blood

Question 24

C(aO2)

Answer 24

total concentration of oxygen in arterial blood

Question 25

C(vO2)

Answer 25

total concentration of oxygen in venous blood

Question 26

V(A)

Answer 26

volume of alveolar gas

Question 27

V(O2)

Answer 27

rate of oxygen uptake per minute

Question 28

V(CO2)

Answer 28

amount of CO2 eliminated per minute

Question 29

R

Answer 29

respiratory exchange ratio

Question 30

Q

Answer 30

cardiac output

Question 31

PO2 through systemic venous blood, pulmonary caps, systemic arterial blood, and systemic caps

Answer 31

Systemic venous blood: ~40mmHg Pulmonary caps: ~100mmHg Systemic arterial blood: ~95mmHg Systemic caps: ~40mmHg

Question 32

PCO2 through systemic venous blood, pulmonary caps, systemic arterial blood, and systemic caps

Answer 32

Systemic venous blood: ~46mmHg | Everywhere else: ~40mmHg