What is the normal peak flow reading for asthma?

Peak expiratory flow (PEF) is measured in litres per minute. Normal adult peak flow scores range between around 400 and 700 litres per minute, although scores in older women can be lower and still be normal.

Is 600 a good peak flow reading?

The taller a person is the higher their peak flow. The highest peak flow reading for an individual occurs between the age of 30-40 years. A reading of 400- 600 l/min is considered normal. An individual suffering with asthma would have a lower reading of 200-400 l/min.

How do you classify asthma severity?

Ideally, asthma severity is determined before initiating therapy. The EPR-3 guideline classification divides asthma severity into four groups: intermittent, persistent-mild, persistent-moderate, and persistent-severe. “Mild-intermittent,” a classification in previous reports, has been eliminated.

What is a low peak flow reading?

For example, a score which is within 20% lower than your usual personal best score is usually considered normal and nothing to worry about. But a score which is 20-50% lower means you need to take action – see your GP or follow the instructions agreed in your action plan.

What are the 4 levels of asthma?

Levels of Asthma

  • Step 1 – mild intermittent asthma. Symptoms fewer than two times a week.
  • Step 2 – mild persistent asthma. Symptoms more than two times a week, but no more than once a day.
  • Step 3 – moderate persistent asthma. Symptoms every day.
  • Step 4 – severe persistent asthma. Constant symptoms.

What are peak flow zones?

Peak flow zones are areas of measurement on a peak flow meter. The goal of the peak flow zones is to show early symptoms of uncontrolled asthma. Peak flow zones are set differently for each person. Your healthcare provider will help determine your peak flow zones.

What is Type 3 asthma?

Severe persistent asthma With this type of asthma, you experience symptoms throughout the day, every day. Nighttime awakenings can occur as often as 7 times per week. You may experience severe limitations to your daily activities.

What is Level 3 asthma?

Third stage: moderate persistent asthma It becomes difficult to ignore. Symptoms. In moderate persistent asthma, daytime symptoms occur every day. Nighttime symptoms are also more common, becoming noticeable 5 or more times a month.