Floreani: Pulmonary Function Tests

Question 1

Challenge tests for breathing probs

Answer 1

Methacholine
Histamine
Cold air / exercise

Question 2

What are the reference values for pulmonary function testing affected by?

Answer 2

Age
Gender
Race
Height
Weight
Altitude

Question 3

Determines inspiratory and expiratory volumes as a function of time

Answer 3

Spirometry

Question 4

Three basic categories of abnormalities

Answer 4

1. restrictive
2. obstructive
3. vascular

Question 5

Abnormality related to static mechanisms. Changes in volume, pressures.

Answer 5

Restrictive

Question 6

Abnormality related to dynamic mechanisms.

Changes in volume/time and airflow.

Answer 6

Obstruction

Question 7

Abnormality related to defects in gas exchange. Changes in arterial blood gas.

Answer 7

Vascular

Question 8

(Blank) is defined as a complete expiration following a maximal inspiration

Answer 8

Vital capacity

Question 9

Forced Expiratory Volume over 1 second

Answer 9

FEV/1

Question 10

About what percent of vital capacity is exhaled in first second?

Answer 10

80%

Question 11

Do patients with emphysema and asthma have a higher or lower FEV/1?

Answer 11

Lower

Question 12

sustained maximal ventilation over 15 seconds

Answer 12

Maximal voluntary ventilation

Question 13

Is FRC increased or decreased in patients with COPD?

Answer 13

Increased

Question 14

(Blank) measures the transfer of the gas CO across the alveolocapillary membranes. Conditions that affect or disrupt these lung structures will reduce this.

Answer 14

Diffusion capacity (DLCO)

Question 15

CO binds to Hb (blank) times more avidly than O2.

Answer 15

210

Question 16

Pulmonary obstruction can cause restricted (blank), (blank), or both on a flow-volume loop.

Answer 16

inspiration, expiration

Question 17

Characterized by objective evidence of at least episodic air flow obstruction.
REDUCED FEV1 out of proportion to FVC
Thus, a REDUCED FEV1/FVC ratio
Flow volume curve that indicates REDUCED EXPIRATORY VOLUMES AND FLOW RATES - (FEV1)

Answer 17

Asthma

Question 18

Characterized by a proportional REDUCTION in BOTH FVC and FEV1, with a NORMAL FEV1/FVC ratio ( > 70 % )
Flow volume loops indicate the REDUCED VOLUMES

Answer 18

Pulmonary fibrosis

Question 19

Bronchoalveolar destruction

Answer 19

Emphysema

Question 20

Destruction or remodeling of arteriolar and capillary beds. The alveolocapillary membrane > than capillary blood volume that is reduced

Answer 20

Pulmonary hypertension

Question 21

Assesses oxygen degree of desaturation with ambulation

Answer 21

Six minute walk test