What Is a Pulmonologist For and When to See One

A pulmonologist is a medical doctor specializing in the respiratory system, including the lungs, airways, and related structures like the windpipe, bronchial tubes, and diaphragm. This medical field, known as pulmonology, is a branch of internal medicine focused on diagnosing and treating conditions that affect breathing and overall lung health.

Key Conditions Treated

Pulmonologists address a wide range of respiratory conditions. Asthma, a common condition, involves inflamed and narrow airways, leading to wheezing, coughing, and shortness of breath. Chronic Obstructive Pulmonary Disease (COPD) encompasses emphysema and chronic bronchitis. COPD damages airways and air sacs, causing persistent airflow obstruction and breathing difficulty. Emphysema damages air sacs (alveoli), leading to their enlargement and reduced elasticity, while chronic bronchitis involves long-term airway inflammation with excessive mucus production.

Pulmonologists also manage infections like pneumonia, an infection causing inflammation and fluid buildup in the air sacs, making breathing difficult. Bronchitis, an inflammation of the bronchial tubes, can be acute or chronic, often resulting in a persistent cough and mucus. Sleep apnea, characterized by repeated pauses in breathing during sleep, is another condition they treat. They also treat less common but serious conditions such as cystic fibrosis, a genetic disorder causing thick, sticky mucus buildup in the lungs, and lung cancer.

Diagnostic and Treatment Approaches

Pulmonologists employ various tests to diagnose respiratory conditions. Spirometry, a common pulmonary function test, measures air inhaled and exhaled, and how quickly, assessing lung function and diagnosing conditions like asthma or COPD. Imaging techniques like chest X-rays and CT scans provide visual details of the lungs, revealing abnormalities such as infections, tumors, or structural changes. Bronchoscopy involves inserting a thin, flexible tube with a camera into the airways to examine them and collect tissue samples. Sleep studies, or polysomnography, monitor breathing patterns during sleep to diagnose disorders like sleep apnea.

Treatment approaches vary by condition. Medications, often delivered via inhalers, help reduce airway inflammation and open breathing passages for conditions like asthma and COPD, and oral medications, including antibiotics for bacterial infections, are also prescribed. Oxygen therapy provides supplemental oxygen for low blood oxygen levels, improving breathing and organ function. Pulmonary rehabilitation programs offer supervised exercise training, breathing techniques, and education to enhance lung function and quality of life for those with chronic lung diseases. When other treatments are insufficient, pulmonologists may refer patients for surgical interventions.

When to Consult a Pulmonologist

A primary care physician often refers patients to a pulmonologist when specialized lung care is needed. Persistent symptoms indicate a consultation may be beneficial. A chronic cough, lasting more than eight weeks, warrants evaluation. Persistent shortness of breath, particularly during physical activity or at rest, is another significant sign. Wheezing, a whistling sound during breathing, or chest pain and tightness can also suggest underlying respiratory issues.

Frequent respiratory infections, such as recurrent bronchitis or pneumonia, may indicate a compromised respiratory system. Abnormal findings from routine tests, like an unusual chest X-ray result, often prompt a referral for further diagnosis and management. Timely consultation can lead to early diagnosis and effective management of lung conditions, improving breathing and overall health.