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Levels of Asthma

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What are the different levels of asthma? These guidelines were established by the National Institutes of Health so that physicians can determine the extent of your child’s asthma.

Step 1 – mild intermittent asthma

  • Symptoms fewer than two times a week
  • Does not have problems between flare-ups
  • Only has short flare-ups from a few hours to a few days
  • Experiences nighttime symptoms fewer than twice a month

Step 2 – mild persistent asthma

  • Symptoms more than two times a week, but no more than once a day
  • His or her activity levels may be affected by the flare-ups
  • Experiences nighttime symptoms more than twice a month

Step 3 – moderate persistent asthma

  • Symptoms every day
  • Uses his or her rescue medication every day
  • Has flare-ups twice a week or more
  • His or her activity levels may be affected by the flare-ups
  • Experiences nighttime symptoms more than once a week

Step 4 – severe persistent asthma

  • Constant symptoms
  • Has a decrease in physical activity
  • Has frequent flare-ups
  • Experiences nighttime symptoms frequently
Last Update
April 12, 2010
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Last Update
April 12, 2010
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