How to Use a Peak Flow Meter

 PURPOSE OF PEAK FLOW MONITORING

A peak flow meter is a device used to measure the degree of airways obstruction in asthmatic airways. Just as blood pressure is measured in hypertension or blood sugar checked in diabetes, peak flow monitoring is very important in the management of asthma. Peak flow monitoring is especially useful for: 

  • Establishing a personal best peak flow (PBPF) for baseline reference as part of an asthma treatment plan 
  • Anticipating asthma flares and assessing response to treatments
  • Communicating with physicians and nurses regarding treatment of asthma
  • Periodic checks during routine office follow-up visits for asthma 

INSTRUCTIONS FOR CHECKING AND RECORDING PEAK FLOWS

Bring your peak flow meter to every office visit – it is best to check your peak flows with the same peak flow meter all the time 

Check peak flows every morning and evening before taking inhalers

It is best to check peak flows in a standing position

Move peak flow indicator to the zero position before each attempt

Prior to each attempt, relax and clear throat gently

Take the deepest breath possible, seal lips around mouthpiece and give a quick, forceful “huff” or blast into the meter 

Record the best of three peak flow attempts in your peak flow diary

Follow instructions on your Asthma Action Plan according to the peak flow guidelines

If peak flows exceed previously established personal best peak flow, call office for new peak flow guidelines