Overview Incidence Risk Factors Symptoms triggers Evaluation pulmonary function test similar conditions Treatment questions for doctor specialist Home Care inhaler use taking control testing peak flow warning signs wheezing attacks Prevention Outlook Complications Underlying Cause Anatomy
Chronic Bronchitis Testing Peak Flow
- PEFR <50% of personal best is the Red Zone. This indicates a severe attack and the need for more aggressive treatment, often requiring corticosteroids.
- PEFR 50-80% of personal best is the Yellow Zone. It indicates suboptimal control or an early attack.
- PEFR 80-100% of personal best is the Green Zone. It indicates good control.
Continue to Chronic Bronchitis Warning Signs
PubMed Chronic Bronchitis References
- Brunton S, Carmichael BP, Colgan R, Feeney AS, Fendrick AM, Quintiliani R, Scott G. Acute exacerbation of chronic bronchitis: a primary care consensus guideline. Am J Manag Care. 2004 Oct;10(10):689-96. 
- Martinez FJ, Anzueto A. Appropriate outpatient treatment of acute bacterial exacerbations of chronic bronchitis. Am J Med. 2005 Jul;118(Suppl 7A):39S-44S. 
- Panpanich R, Lerttrakarnnon P, Laopaiboon M. Azithromycin for acute lower respiratory tract infections. Cochrane Database Syst Rev. 2004 Oct 18;(4):CD001954. 
- Schmier JK, Halpern MT, Higashi MK, Bakst A. The quality of life impact of acute exacerbations of chronic bronchitis (AECB): a literature review. Qual Life Res. 2005 Mar;14(2):329-47.