Asthma severity classification

Symptoms/SABA

• Intermitent
• Mild
• Moderate
• Severe

• ≤2 days/week
• >2 days/week
• Daily
• Multiple times/day

Asthma severity classification

Nighttime awakenings

• Intermittent
• Mild
• Moderate
• Severe

• ≤2x/month
• 3-4X/month
• >QW
• QD

Asthma Severity classification

FEV₁

• Intermittent
• Mild
• Moderate
• Severe

• >80%
• >80%
• 60-80%
• <60%

Asthma Severity classification

FEV₁/FVC

• Intermittent
• Mild
• Moderate
• Severe

• Normal
• Normal
• Reduced 5%
• Reduced >5%

Asthma control

Symptoms/SABA use

• Well Controled
• Not Well Controled
• Very Poorly Controled

• ≤2 days/week
• >2 days/week
• Multiple times/day

Asthma control

Nighttime awakenings

• Well Controled
• Not Well Controled
• Very Poorly Controled

• ≤2x/month
• 1-3x/week
• ≥4x/week

Asthma control

FEV₁

• Well Controled
• Not Well Controled
• Very Poorly Controled

• >80%
• 60-80%
• <60%

Acute Severe Asthma

PEF or FEV₁

• Mild
• Moderate
• Severe
• Life threatening

• ≥70%
• 40-70%
• <40%
• <25%

Acute Severe Asthma at home

PEF

• Good response
• Incomplete response
• Poor response

• ≥80%
• 50-79%
• <50%

Acute Severe Asthma at hospital

PEF or FEV₁

• Mild/Moderate
• Severe
• Respiratory Arrest

• >40%
• <40%
• 0

COPD

FEV₁

• I
• II
• III
• IV

• >80%
• 50-80%
• 30-50%
• <30%

(Veritcal)

COPD

_{CAT score}

• Low risk
• High risk

• <10
• ≥10

(Horizontal)

COPD

_MMRC

• 0
• 1
• 2
• 3
• 4

• Strenuous
• brisk walk/stairs
• Slower than normal
• 100 meters/few minutes
• can't leave house/change cloths

COPD

_MMRC

• Low risk
• High risk

• 0-1
• 2-4

Horizontal

COPD

_Risk

• Low
• High

• ≤ 1 exacerbation/year
• ≥ 2 exacerbation/year

(Vertical)

Post bronchodilator FEV₁/FVC <70%

Diagnosis of asthma

Reversibility

After giving a SA bronchodilator

• FEV₁ ↑ >200ml and ↑ >12%