Physio Exam 4 Set 3

Question 1

Tidal Volume

Answer 1

Normal Breathing 12-18 times a minute

Question 2

Total Lung compacity

Answer 2

about 6 liters

Question 3

FEV1

Answer 3

Forced Expiratory Volume
- Can help you find the origin of the disease

Question 4

Restrictive Diseases, FEV1 :

Answer 4

Decreases

Question 5

Obstructive Diseases

Answer 5

A lot longer to inhale the 4 liters

Question 6

Forced Vital Capacity = 5L

Answer 6

FEV- (Forced expiratory Value) amount exhaled in 1 second 4L.

Question 7

FEV/FVC = 0.8

Answer 7

Plethysmograph- more accurate

Question 8

Type 1 Alveolar Cells exchange with capillaries

Question 9

Increased Respiration

Answer 9

Alkalosis

Question 10

Decrease Ventilation

Answer 10

Acid Direction

Question 11

Lower you go down the lobe, the better the gas exchange.

Answer 11

Upper third of the lung has poor gas exchange (Dead Space )

Question 12

Zone 1 (Top) : PA>Pa>Pv

Answer 12

Zone 2 (Middle) Pa>PA>Pv

Question 13

Zone 3 (Bottom) : Pa>Pv>PA

Answer 13

• Lower part better exchange because the air does not occlude blood flow.

Question 14

Henry’s Law

Answer 14

Amount of gas dissolved in a liquid is proportional to its partial pressure - driving forces.
- Affects Flow
- Form of Ohm’s Law
Change in P=Flow x thickness
(Thicker the barrier the lower the flow)

Question 15

Higher compliance allows :

Answer 15

More filling

Question 16

FVC

Answer 16

Forced Vital Capacity
- The amount of air exhaled during the FEV test.

Question 17

FEV1 -

Answer 17

Forced expiratory volume at 1s

Question 18

FEV1 and PEFR (Peak Expiratory Flow Rate)

Answer 18

IMPORTANT IN DIAGNOSING DISEASE

Question 19

Work of breathing

Answer 19

Pressure x Change in Volume

Question 20

Exchange is DIRECTLY effected by edema

Answer 20

CHF decreases the exchange !

Question 21

Exchange is INDIRECTLY effected by :

Answer 21

Hemoglobin and O2 carrying capacity