Pneumology. Table 1

Asthma classification according its severity



Classification

Clinical and Spirografic Findings

Intermitent
  • intermitent symptoms (less than 1 time/week)
  • mild crisis (few hours to few days)
  • nocturnal symptoms less than twice/month
  • beetwen crisis : assymptomatic and with pulmonary function tests in normal range
  • peak flow or FEV1 : > or = 80% predicted; variability < 20%

    • Persistent Mild
  • symptoms more than once a week, but less than once a day
  • paroxisms could affect daily acctivities or sleep
  • nocturnal crisis more than twice/month
  • peak flow or FEV1 : > or = 80% predicted; variability 20-30%
    		•

    Persistent Moderate
  • daily symptoms· paroxisms affecting daily acctivities or sleep
  • nocturnal crisis more than once a week
  • daily use of fast acting beta2 agonists
  • peak flow or FEV1 : < 60-80% predicted; variability > 30%
    		•

    Persistent Severe
  • daily symptoms
  • frequent asthma exacerbations
  • frequent nocturnal symptoms
  • limited physical activity by respiratory symptoms
  • peak flow or FEV1 : < or = 60% predicted; variability > 30%
    		•

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