Spirometry - Flash Cards

Question 1

Spirometry:

What are the 3 major factors that determine predicted values?

Bonus: name 2 others that can be used

Answer 1

Age
Height
Gender

Bonus: weight and ethnicity

Question 2

How long should you hold a SABA before spirometry testing?

How long should you hold a LABA?

Answer 2

SABA 4 hours

LABA 12 hours

Question 3

True or False:

Bronchodilators for pre/post testing should be given by the same method that the patient uses at home

Answer 3

True

*page B-8

Question 4

True or False:

All spirometry values are measured at ATPS (ambient temperature and pressure saturated) and should be reported at BTPS (body temperature and pressure saturated)

Answer 4

1. True
   * page B-10

On the exam, take the ATPS answer and select the next highest number from the choices given. This is the correct answer (BTPS)

Question 5

The only value needed to diagnose restrictive disease on the exam is ___

Answer 5

Vital Capacity (VC)

*can be presented as FVC or SVC on the exam.

Question 6

A patient passes out during an FVC. what do you suspect?

Answer 6

A vaso-vagal response, which would indicate decreased venous return.

Question 7

The best value to diagnose obstructive disease is ___

Answer 7

FEV1/FVC ratio.

If not available, FEV1 should be used.

Question 8

This maneuver is defined as “the largest volume of air inhaled and exhaled over a 12 second period.”

Answer 8

MVV (maximum voluntary ventilation)

*note: FEV1 x 35 is a good estimate of MVV.

If a patient has an MVV and a FEV1 and you suspect poor effort, multiply FEV1 x 35. If the MVV is lower than this number, poor patient effort is the answer.

Question 9

Key Word: “IMMEDIATELY”

What drug would you use to “IMMEDIATELY” perform a post-bronchodilator study?

Answer 9

Isoproterenol

*page B-27

Question 10

A positive post bronchodilator result is noted when FEV1 improves by ___ % and by ___ ml

Answer 10

12% and 200ml

Question 11

After administering a bronchodilator, how many minutes should you wait before performing a post-bronchodilator test?

Answer 11

10-15 minutes

Question 12

what are the obstructive diseases listed in CBABE

Answer 12

Cystic Fibrosis
Bronchitis
Asthma
Bronchiectasis
Emphysema

Question 13

Interpretation of predicted values:

> or = 80% is \_\_\_
< 80% is \_\_\_
< 70% is \_\_\_
< 60% is \_\_\_
< 50% is \_\_\_
< 35% is \_\_\_

Answer 13

> or = 80% is normal
< 80% is mild
< 70% is moderate
< 60% is moderate/severe
< 50% is severe
< 35% is very severe

Question 14

A VC of < ___% is restrictive

A FEV1 of < ___% is obstructive

A FEV1/FVC ratio of < ___% is obstructive

Answer 14

A VC of < 80% is restrictive

A FEV1 of < 70% is obstructive

A FEV1/FVC ratio of < 70% is obstructive