What is a normal peak flow?

What is a normal peak flow?

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. The most important thing is whether your score is normal for you.

What does a peak flow meter tell you?

A peak flow meter is a portable, easy-to-use device that measures how well your lungs are able to expel air. By blowing a quick blast of air through a mouthpiece on one end, the peak flow meter can measure the force of air in liters per minute and give you a reading on a built-in numbered scale.

Why is peak flow important?

Your score can show whether or not your condition is getting worse. It can also check if your medication is working, and indicate whether you’re having an asthma attack.

What happens if your peak flow is low?

If you get a peak flow score that’s lower than your best score, it can act as an early warning sign and help you prevent an asthma attack. It can also help you identify triggers, allergies, or infections that could be making your asthma worse.

Can a peak flow test detect COPD?

Peak flow meter with few symptom questions can be effectively used in real-life clinical practice for objective detection of asthma and COPD, in absence of good quality spirometry.

Does low peak flow mean asthma?

If your airways are tight and inflamed, your peak flow score will be lower than normal. This could be a sign your asthma is getting worse. See your GP if: you’re having symptoms, or need to use your reliever inhaler three or more times a week, even if your peak flow scores are normal.

Is COPD considered a terminal illness?

COPD is not a terminal illness but a chronic disease that gets worse over time . Although there is no cure for COPD, the illness can be successfully managed especially if it’s recognized early.