Pulmonologist: Role, Conditions Treated & When to See One

A pulmonologist (respiratory physician) is an internal medicine physician with subspecialty fellowship training in diseases of the respiratory system—lungs, airways, pleura, mediastinum, and respiratory control centers. They provide expert diagnosis, management, and procedural care for acute and chronic respiratory conditions.

Conditions Managed

• Obstructive lung diseases: Asthma (severe/difficult-to-control), COPD (emphysema, chronic bronchitis), bronchiectasis, cystic fibrosis.
• Interstitial lung diseases (ILDs): Idiopathic pulmonary fibrosis (IPF), hypersensitivity pneumonitis, sarcoidosis, connective tissue disease-ILD, pneumoconioses.
• Infections: Complex pneumonia, TB, NTM (MAC), fungal, COVID-19 sequelae.
• Pulmonary vascular disease: Pulmonary arterial hypertension (PAH), CTEPH, pulmonary embolism (chronic/thromboembolic).
• Neoplastic: Lung cancer (diagnosis, staging, multidisciplinary management), mediastinal tumors.
• Sleep-disordered breathing: Obstructive/central sleep apnea, obesity hypoventilation syndrome.
• Critical care: ARDS, septic shock, COPD/asthma exacerbations, ventilator management, ECMO.
• Pleural diseases: Effusions, pneumothorax, empyema, mesothelioma.
• Rare/orphan diseases: LAM, HPS, alveolar proteinosis, primary ciliary dyskinesia.

Key Roles & Procedures

1. Diagnosis & Evaluation: Comprehensive history, exam, interpretation of PFTs (spirometry, lung volumes, DLCO, bronchial challenge), imaging (CXR, CT, PET), bronchoscopy (flexible, rigid, EBUS, navigation), thoracentesis, lung biopsy (transbronchial, surgical).
2. Treatment Planning: Evidence-based pharmacotherapy (inhalers, biologics, antifibrotics, PAH-targeted therapy, immunosuppressants), oxygen therapy (titration, portable systems), non-invasive ventilation, pulmonary rehabilitation, bronchoscopic interventions (stenting, ablation, valve placement), thoracic surgery referral.
3. Patient Education & Self-Management: Inhaler technique, action plans (asthma/COPD), smoking cessation counseling, oxygen safety, travel with respiratory equipment, advance care planning.
4. Collaborative Care: Co-manage with allergists, cardiologists, thoracic surgeons, oncologists, rheumatologists, palliative care, primary care.
5. Research & Innovation: Clinical trials (novel biologics, antifibrotics, targeted therapies), translational research, guideline development (ATS, ERS, CHEST).
6. Preventive Care: Screening high-risk (smokers—LDCT for lung cancer; occupational exposures; family history of ILD/PAH). Vaccination advocacy (flu, COVID, pneumococcal, RSV).

When to See a Pulmonologist

• Persistent cough >8 weeks, hemoptysis
• Unexplained dyspnea, exercise intolerance
• Abnormal imaging (nodule, infiltrate, fibrosis, effusion)
• Abnormal PFTs (obstruction, restriction, low DLCO)
• Difficult-to-control asthma/COPD (≥2 exacerbations/year, oral steroid dependence)
• Suspected PAH, ILD, lung cancer, sleep apnea
• Pre-operative pulmonary risk assessment
• Long COVID respiratory symptoms

Credentials

Board certification: American Board of Internal Medicine (ABIM) - Pulmonary Disease (often dual-certified in Critical Care Medicine). Professional societies: American Thoracic Society (ATS), American College of Chest Physicians (CHEST), European Respiratory Society (ERS).

Pulmonologists are essential partners in managing breathing disorders—improving symptoms, function, and survival.