PhysioLec: Spirometry

Question 1

Normal V/Q ratio is 0.08. This implies that alveolar ventilation is 80% of the value for pulmonary blood flow.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 1

B. Only the 2nd statement is true

Question 2

Some of the air a person breathes never reaches the gas exchange areas. The normal dead space in a
young normal healthy man is 150 ml.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 2

C. Both statements are true

Question 3

Tidal volume constitutes the air inspired / expired in each relaxed, normal breathing. It is composed of two or
more lung volumes.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 3

A. Only the 1st statement is true

Question 3

Surfactant increases the surface tension of water. It is secreted by Type I alveolar epithelial cells.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 3

D. Both statements are false

Question 4

All parts of the lungs have the same degree and ventilation. It is divided into 3 zones based on the V/Q
ratio.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 4

B. Only the 2nd statement is true

Question 5

TRUE OR FALSE: Functional Residual Capacity is the sum of residual volume and expiratory reserve volume.

Answer 5

True

Question 6

TRUE OR FALSE: Vital Capacity is expected to decrease in pts with
severe obstructive lung disease.

Answer 6

True

Question 7

Pt Reyes underwent Spirometry as part of his APE. The ff are the findings: IRV measures 2700ml, TV 485ml,
and ERV is at 980ml. What is his VC?

Answer 7

4165 ml

Question 8

Maximum amount of air a person can expel from the lungs after first filling the lungs to their maximum extent
and then expiring to the maximum extent.

Answer 8

Vital capacity

Question 9

Which sex usually scores higher with the Heymer’s Test?

Answer 9

Male

Question 10

Volume of all the space of the respiratory system other
than the alveoli and their other closely related gas
exchange areas

Answer 10

Anatomic dead space

Question 11

Extra volume of air that can be inspired over and above the normal tidal volume when a person expires with full
force

Answer 11

Inspiratory reserve volume

Question 12

The total amount of new air moved into the respiratory passages each minute is the ___. It is TV x RR per minute.

Answer 12

Minute Respiratory Volume (MRV)

Question 13

The most important component of surfactants?
A. Phospholipid dipalmitoyl
phosphatidylcholine
B. Surfactant apoproteins
C. Calcium ions
D. All of the above

Answer 13

D. All of the above

Question 14

If the Tidal Volume is Normal and the Inspiratory Capacity is 4500ml, what is the value for IRV?

Answer 14

4000 ml

Question 15

After a normal tidal expiration, the maximum extra volume that can still be expired forcefully is called ___

Answer 15

Expiratory Reserve Volume

Question 16

The extent to which the lungs will expand for each unit in
transpulmonary pressure

Answer 16

Total Lung Capacity

Question 17

The Total Lung Capacity of pt A. J. is 500 less than the normal. What is his TLC?

Answer 17

5300 ml

Question 18

A diagram relating lung volume changes to changes in pleural pressure.

Answer 18

Compliance Diagram of the Lung

Question 19

Movement of air in and out of the lungs.

Answer 19

Ventilation

Question 20

Every time the transpulmonary pressure increases by 1
centimeter of water, the lung volume (after 10 to 20 seconds) will expand by ___.

Answer 20

200 ml

Question 21

An indication of the subject’s functional
respiratory reserve and efficiency of the respiratory system

Answer 21

Heymer’s test

Question 22

After his most forceful expiration, the volume of air measured for patient R.Ramos was 1400ml. What was
the volume measured?

Answer 22

Residual volume

Question 23

The elastic forces of lung tissue is determined mainly
by:
A. Collagen
B. Elastin
C. Both
D. Neither

Answer 23

C. Both