From Wikipedia, the free encyclopedia. Acute exacerbation of COPD also known as acute exacerbations of chronic bronchitis (AECB) is a sudden worsening of COPD symptoms (shortness of breath, quantity and color of phlegm) that typically lasts for several days.It may be triggered by an infection with bacteria or viruses or by environmental pollutants.hortness of breath and wheezing are present in many cases. Exacerbations may be accompanied by increased amount of cough and sputum productions, and a change in appearance of sputum. An abrupt worsening in COPD symptoms may cause rupture of the airways in the lungs, which in turn may cause a spontaneous pneumothorax.
Confidence votes 262K. To reset the fuel filter warning light off for the Toyota hilux one must replace the filter that switch the car on and off. They must also click the rest button.
How to reset maintenance light, reset oil service light. Can be made manually by use button on car dash board. How to reset service light indicator Mercedes Sprinter 311 CDI, Model 2.2 Turbo Diesel (OM 611). From year: 2004. Highlight service clock then switch to ignition position 2 on.