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As chronic obstructive pulmonary disease (COPD) worsens, the flow of air to and from your lungs gets increasingly limited making it gradually more difficult to breathe. Once you’ve reached Stage II COPD, otherwise known as moderate COPD, your lung function becomes reduced to between 50% and 79% of the predicted normal. What else should you expect during State II COPD?
At this stage, you’re probably just starting to notice COPD symptoms, particularly shortness of breath that worsens with activity. You may also notice your cough is getting worse and you have more mucus than you usually do.
In the first stage of the disease, you may not have noticed any symptoms or you may have associated them with smoking or something else entirely. You’re not alone. Many people miss the early signs of COPD. That’s why it’s usually during Stage II, moderate COPD that most people become troubled by their symptoms and seek medical attention.2
As with other stages of COPD, to make a diagnosis of Stage II, moderate COPD, your doctor will do a physical exam and ask about your health and smoking history. She’ll similarly want to know about your exposure to other airway irritants, such as dust or chemical fumes in the workplace. You’ll also take a spirometry test, a simple breathing test that confirms a diagnosis of COPD and tells your doctor what stage you’re in. There are 4 stages of COPD, from mild to very severe.2 As we mentioned above, you’ll have Stage II, moderate COPD if your forced expiratory volume in one second (FEV1) – one of the measurements taken during a spirometry test – is between 50% and 79 percent.1 You may also get other diagnostic tests, such as a chest X-ray, CT scan, blood tests and exercise tests that will reveal more information about your lung function and the impact COPD has had on other parts of your body.2
The Global Initiative for Chronic Obstructive Lung Disease (GOLD) has recommended treatment guidelines for every stage of COPD. As the disease progresses, additional treatment options may be added to your treatment plan to help better manage your symptoms.
To follow are GOLD treatment guidelines for moderate COPD:
For more information about Stage II COPD, including symptoms, diagnosis and treatment, talk to your primary care provider or pulmonologist.
 Global Initiative for Obstructive Lung Disease (GOLD). GOLD 2018 Global Strategy for the Diagnosis, Treatment and Prevention of COPD.
 Stage II (Moderate Stage) COPD. WebMD. Last reviewed February 14, 2018.
 Ferguson, Gary T. Maintenance pharmacotherapy of mild and moderate COPD: What is the Evidence? Respiratory Medicine. 105, 1268-1274.