Components of severity | Classification of asthma severity (≥12 years of age) | ||||
Intermittent | Persistent | ||||
Mild | Moderate | Severe | |||
Impairment Normal FEV1/FVC: 8 to 19 years 85% 20 to 39 years 80% 40 to 59 years 75% 60 to 80 years 70% | Symptoms | ≤2 days/week | >2 days/week but not daily | Daily | Throughout the day |
Nighttime awakenings | ≤2x/month | 3 to 4x/month | >1x/week but not nightly | Often 7x/week | |
Short-acting beta2-agonist use for symptom control (not prevention of EIB) | ≤2 days/week | >2 days/week but not daily, and not more than 1x on any day | Daily | Several times per day | |
Interference with normal activity | None | Minor limitation | Some limitation | Extremely limited | |
Lung function |
|
|
|
| |
Risk | Exacerbations requiring oral systemic glucocorticoids | 0 to 1/year (see footnote) | ≥2/year (see footnote) | ||
Consider severity and interval since last exacerbation | |||||
Frequency and severity may fluctuate over time for patients in any severity category | |||||
Relative annual risk of exacerbations may be related to FEV1 | |||||
Recommended step for initiating treatment | Step 1 | Step 2 | Step 3 | Step 4 or 5 | |
And consider short course of oral systemic glucocorticoids | |||||
In two to six weeks, evaluate level of asthma control that is achieved and adjust therapy accordingly. |
Do you want to add Medilib to your home screen?