What Is a Pulmonologist and When to See One?

What does a pulmonologist do?

Pulmonologists complete medical school, an internal medicine residency, and a fellowship of two to three additional years focused on pulmonary medicine — some also sub-specialize in critical care medicine (the ICU) or sleep medicine.

Their scope covers: - Diagnosing the cause of unexplained breathlessness - Managing chronic obstructive pulmonary disease (COPD) and asthma when complex or difficult to control [1,2] - Evaluating and treating interstitial lung diseases (ILD) — a group of conditions that cause scarring of the lung tissue (fibrosis) - Diagnosing and treating pulmonary hypertension - Evaluating and managing sleep-disordered breathing, including ordering and interpreting sleep studies 3Ref 3Kapur VK, Auckley DH, Chowdhuri S, et al. (2017).Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea: An American Academy of Sleep Medicine Clinical Practice Guideline.Pulmonologists with sleep medicine expertise ordering and interpreting sleep studies for OSA - Performing bronchoscopy — a procedure in which a flexible camera is passed into the airways to look for tumors, infections, or abnormalities and to collect samples - Managing lung infections that are complex, non-responsive, or involve unusual organisms (tuberculosis, fungal infections) - Providing pre-surgical lung function assessment for people about to have chest or major abdominal surgery - Lung cancer staging workup and sometimes endobronchial procedures

What conditions do pulmonologists treat?

Common reasons for a pulmonology referral:

• COPD — particularly when symptoms are severe, exacerbations are frequent, or management with standard therapy is not working 1Ref 1Global Initiative for Chronic Obstructive Lung Disease (2024).Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Pulmonary Disease (2024 Report).COPD as a primary condition managed by pulmonologists; role of spirometry in diagnosis and staging
• Asthma — when asthma is difficult to control, requires high-dose steroids, or the diagnosis is uncertain 2Ref 2Global Initiative for Asthma (GINA) Science Committee (2024).Global Strategy for Asthma Management and Prevention.Asthma as a condition managed by pulmonologists when difficult to control or atypical
• Interstitial lung disease / pulmonary fibrosis — a group of progressive scarring lung conditions that require specialized assessment and treatment
• Pulmonary hypertension — high blood pressure in the lung arteries; diagnosis requires right heart catheterization, typically arranged through pulmonology or cardiology
• Obstructive sleep apnea — many pulmonologists have sleep medicine expertise; they order, interpret, and manage treatment for sleep studies 3Ref 3Kapur VK, Auckley DH, Chowdhuri S, et al. (2017).Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea: An American Academy of Sleep Medicine Clinical Practice Guideline.Pulmonologists with sleep medicine expertise ordering and interpreting sleep studies for OSA
• Chronic or recurrent pneumonia — when infections keep coming back or do not clear normally
• Unexplained breathlessness — when a primary care workup has not identified a cause
• Hemoptysis (coughing up blood) — always warrants specialist evaluation
• Sarcoidosis — a systemic inflammatory disease that commonly affects the lungs
• Occupational lung disease — caused by exposure to asbestos, silica, coal dust, or other workplace agents

How is a pulmonologist different from a respiratory therapist?

These are entirely different roles:

• A pulmonologist is a licensed physician (MD or DO) who diagnoses diseases, interprets tests, prescribes medications, and performs procedures like bronchoscopy.
• A respiratory therapist (RT) is an allied health professional who administers and manages breathing treatments, operates ventilators and CPAP equipment, performs pulmonary function tests (spirometry), and educates patients on inhaler technique and airway clearance. RTs work closely with pulmonologists in hospitals and clinics.

Both are important parts of care for people with lung disease — they play complementary, not competing, roles.

Do I need a pulmonologist or can my primary care doctor handle this?

For most breathing concerns, start with your primary care clinician. They can: - Order a chest X-ray, spirometry, pulse oximetry, and basic blood tests - Diagnose and manage mild to moderate asthma and COPD - Initiate treatment for community-acquired pneumonia - Evaluate and treat common causes of breathlessness (anemia, hypothyroidism, heart failure)

A referral to pulmonology makes sense when: - The cause of breathlessness is not clear after an initial workup - An established lung disease (COPD, asthma) is not adequately controlled - Spirometry or imaging findings suggest a complex or unusual lung condition - You need a bronchoscopy or other procedure - A sleep study and sleep apnea management are needed 3Ref 3Kapur VK, Auckley DH, Chowdhuri S, et al. (2017).Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea: An American Academy of Sleep Medicine Clinical Practice Guideline.Pulmonologists with sleep medicine expertise ordering and interpreting sleep studies for OSA - Coughing up blood occurs at any amount

A Gale primary care clinician can begin your evaluation, start treatment where appropriate, and coordinate a referral to a pulmonologist when one is needed.

What happens at a first pulmonology appointment?

A first pulmonology visit typically includes:

1. Detailed history — symptoms, timeline, smoking history, occupational exposures, family history of lung disease 2. Pulmonary function testing (spirometry) — measures how much air you can move and how fast; the key tool for diagnosing and grading COPD and asthma [1,2] 3. Review of prior imaging — bring any recent chest X-rays or CT scans 4. Possible additional tests ordered — CT chest, diffusion capacity testing (measures gas exchange), arterial blood gas, or echocardiogram 5. Discussion of findings and a management plan

It helps to bring a list of all your medications, your inhaler devices if you use them, and a description of how your symptoms have changed over time.

How to prepare for your pulmonology referral

Gale can help you prepare: - Gather prior test results and imaging - Write down your symptom timeline and any patterns you have noticed - List current medications and any you have tried for breathing in the past - Note your smoking history (years smoked, packs per day) - Identify occupational or environmental exposures - Prepare questions about your diagnosis, whether a sleep study is needed, and what monitoring will look like going forward