How does the traffic Light indication work?
The “traffic light scheme” allows a patient to self-assess measured values to follow the progression of the illness. Self-assessment empowers patients to control their asthmatic illness in close co-operation with their physician. The physician determines a green, a yellow and a red area for the patient’s peak flow readings and determines the patients own personal best value. This is the highest value the patient can achieve under optimum conditions (free of symptoms, feeling well). [Example: 500 l/min.] The green area usually reaches 80% of the personal best value. [Example: 500 l/min x 0.8=400 l/min] The yellow area usually reaches 60% of the personal best value. [Example: 500 l/min x 0.6=300 l/min]. As long as the values are in the green area, the lung disease is well under control. If the readings are frequently in the yellow area, the medication dosage should be increased according to the physician’s recommendation. Peak flow results in the red area are dangerous! The patient shoul
