U.S. doctors online nowAsk doctors free
Walton, KY
A 55-year-old male asked:

Using the gold system how can i tell when i go eom stage 3 to stage 4 emphasema/copd?

2 doctor answers3 doctors weighed in
Dr. Rodney Del Valle
A Verified Doctoranswered
37 years experience
GOLD system : Classify COPD patients based on airflow limitation. Pulmonary function test use the capacity of a pat to exhale all inspired air in one second. Fev1 and fvc/fev1 measurements decrease with increasing severity of lung obstruction. Stage 3 severe COPD fev1 30-45% of normal and stage 4 very severe COPD with fevi less than 30% if normal.
Dr. Charles Burger
Internal Medicine - Pulmonary Critical Care 37 years experience
COPD Stages: The stages are based on the severity of COPD as assessed by your lung function tests performed by the doctor.

Related questions

A 47-year-old member asked:
2 doctor answers4 doctors weighed in
A 51-year-old member asked:
1 doctor answer5 doctors weighed in
A 35-year-old member asked:
2 doctor answers6 doctors weighed in
A 32-year-old member asked:
1 doctor answer1 doctor weighed in
Last updated Apr 24, 2015

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.