Week 6 - Spirometry/PFT Flashcards
Sxs < 2 days/wk and < 2 nights/wk
FEV1 > 80%
PEF variability < 20%
Severity classification?
- Intermittent
- Mild persistent
- Moderate persistent
- Severe persistent
Intermittent
Sxs > 2 days/wk but 1x/day and > 2 nights/wk
PEF or FEV1 > 80%
PEF variability 20-30%
Severity classification?
- Intermittent
- Mild persistent
- Moderate persistent
- Severe persistent
Mild persistent
Sxs < daily and > 1 night/wk
PEF or FEV1 > 60% - 80%
PEF variability > 30%
Severity classification?
- Intermittent
- Mild persistent
- Moderate persistent
- Severe persistent
Moderate persistent
Sxs continual in day and frequent at night
PEF or FEV1 < 60%
PEF variability > 30%
Severity classification?
- Intermittent
- Mild persistent
- Moderate persistent
- Severe persistent
Severe persistent
Sxs are:
= 2 days/week
= 1 nighttime awakening/month
= 2 days/week of bronchodilator
How controlled is this asthma?
- Well controlled
- Not well controlled
- Very poorly controlled
Well controlled
Sxs are:
> 2 days/week
>/= 2 nighttime awakenings/month
> 2 days/wk of albuterol
How controlled is this asthma?
- Well controlled
- Not well controlled
- Very poorly controlled
Not well controlled
Sxs are: Daily sxs and multiple doses of albuterol/day
How controlled is this asthma?
- Well controlled
- Not well controlled
- Very poorly controlled
Very poorly controlled
What is FVC?
Forced volume capacity
The volume of air a person can blow out forcefully from max inhalation to max exhalation
What is FEV1?
Forced expiratory volume at 1 second
The volume of air a person can force out in the first second of exhalation
What is FEF 25-75%?
Forced expiratory flow during middle portion (25th and 75th) of FVC
What is inspiratory reserve volume?
Max volume of air inhaled from end inspiratory tidal position
What is tidal volume?
Volume of air inhaled and exhaled with each breath during quiet breathing
What is expiratory reserve volume?
Max volume of air that can exhaled from resting end-expiratory position
What is residual volume?
Volume of air remaining in lungs after max exhalation
What is vital capacity?
Max volume of air exhaled from max inspiratory level
What is inspiratory capacity?
Max volume of air that can be exhaled from end expiratory tidal position
What is functional residual capacity?
Volume of air in lungs at end expiratory tidal position
What is total lung capacity?
Sum of all volume compartments or volume of air in lungs after max inspiration
What are normal spirometry values?
- FVC
- FEV1
- FEF 25-75%
- FEV1/FVC
FVC > 80%
FEV1 > 80%
FEF 25-75% > 55%
FEV1/FVC > 70-80%
What are spirometry values in obstructive lung dz?
- FVC
- FEV1
- FEF 25-75%
- FEV1/FVC
-flow shape
FVC > 80%
FEV1 < 80%
FEF 25-75% < 55%
FEV1/FVC < 70-80%
-caved in, left shift
What are spirometry values in restrictive lung dz?
- FVC
- FEV1
- FEF 25-75%
- FEV1/FVC
-flow shape
FVC < 80%
FEV1 < 80%
FEF 25-75% > 55%
FEV1/FVC > 70-80%
-circular (decreased volume), right shift
What are 4 examples of obstructive lung dz?
Asthma
CF
COPD
Bronchiectasis
What are 4 things that you need to know to perform spirometry?
Height
Gender
Smoker status
Ethnicity
How would you differentiate between restrictive and obstructive lung dz w/ PFT?
Obstructive has DEC FEV1/FVC
Restrictive as DEC FVC and INC FEV1/FVC
