FNP Pulmonology Review: Asthma, COPD, Pneumonia & Practice Questions

Pulmonology · 5 min read · June 18, 2026

Mastering Pulmonology for FNP Boards: High-Yield Respiratory Concepts and Practice Questions

Respiratory questions on the FNP certification exam are rarely simple definition questions. More often, you will be asked to recognize a clinical pattern, select the most appropriate diagnostic test, determine whether a patient can be treated as an outpatient, and choose the safest next step.

Official AANPCB content is organized by assessment, diagnosis, planning, and evaluation rather than by a published pulmonology percentage. ANCC candidates should also use the test content outline that corresponds with their examination date because an updated FNP outline takes effect October 30, 2026.

Clinical review note: This article was reviewed in June 2026. Guidelines, medication labeling, and local resistance patterns change. Use current clinical guidance and patient-specific judgment in practice.

How to approach a respiratory board question

Before selecting an answer, ask yourself:

Is the patient stable, or is this a respiratory emergency? Does the presentation suggest an obstructive, restrictive, infectious, vascular, or pleural disorder? Which test confirms the suspected diagnosis? Can the patient be managed as an outpatient? What treatment addresses the underlying problem rather than only relieving a symptom?

This framework helps prevent a common mistake: choosing a medication before establishing the diagnosis or recognizing that the patient needs emergency care.

Pulmonary function testing: recognize the pattern

Pulmonary function tests describe respiratory physiology, but they do not independently establish a specific disease diagnosis.

An obstructive pattern is characterized by reduced expiratory airflow and a low FEV1/FVC ratio. Asthma and COPD are common examples.

A restrictive pattern requires a reduced total lung capacity. A low FVC with a normal or elevated FEV1/FVC ratio may suggest restriction, but spirometry alone does not confirm it.

A mixed pattern includes both airflow obstruction and reduced total lung capacity.

Always interpret pulmonary function results in the context of symptoms, exposures, examination findings, and test quality.

Asthma: variable symptoms and variable airflow

Asthma is a heterogeneous disease commonly characterized by chronic airway inflammation. Typical symptoms include wheezing, coughing, chest tightness, and shortness of breath that vary over time and in intensity.

Diagnosing asthma

The diagnosis requires both:

A history of variable respiratory symptoms Objective evidence of variable expiratory airflow

In adults, an increase in FEV1 or FVC of at least 12% and at least 200 mL after bronchodilator administration supports the diagnosis. However, a negative bronchodilator response during a single visit does not automatically exclude asthma. Testing may need to be repeated when the patient is symptomatic or after appropriately withholding bronchodilators.

Other testing options may include peak-flow monitoring, bronchoprovocation testing, or assessment for alternative diagnoses.

Current asthma treatment principles

The original statement that albuterol is the “cornerstone” of asthma treatment needs to be changed.

Albuterol can provide rapid bronchodilation when it is the patient’s prescribed reliever, but it does not treat the underlying airway inflammation. GINA 2026 recommends an inhaled corticosteroid–containing strategy for adults, adolescents, and children ages 6–11 rather than SABA-only treatment. For many adults and adolescents, the preferred approach uses low-dose ICS-formoterol as the reliever. Other patients may use a daily ICS-containing controller with an appropriate reliever.

A LABA should not be used alone for ongoing asthma treatment. It must be paired with an inhaled corticosteroid.

Before increasing therapy, assess:

Inhaler technique Adherence Trigger exposure Tobacco or vaping exposure Allergic rhinitis Gastroesophageal reflux Obesity Medication access

Increasing the dosage will not solve poor inhaler technique or an inability to afford the prescribed medication.

Asthma emergency warning signs

Findings such as altered mental status, exhaustion, cyanosis, a silent chest, inability to speak normally, worsening hypoxemia, or failure to respond to initial bronchodilator treatment require urgent escalation.

COPD: persistent airflow obstruction in the appropriate clinical setting

COPD should be considered in a patient with chronic dyspnea, cough, sputum production, recurrent lower respiratory infections, or relevant exposure history.

Although cigarette smoking remains a major cause, occupational exposures, air pollution, biomass fuel exposure, abnormal lung development, and genetic factors can also contribute.

Confirming COPD

Symptoms and smoking history alone do not confirm COPD.

The diagnosis requires post-bronchodilator spirometry demonstrating:

FEV1/FVC less than 0.70

This finding must be interpreted in the appropriate clinical context.

A major asthma-versus-COPD board trap

Do not memorize:

“Asthma is reversible, and COPD is not.”

A clinically significant bronchodilator response can occur in COPD, and airflow limitation can eventually become persistent in asthma. GOLD no longer recommends using the degree of bronchodilator reversibility to distinguish COPD from asthma or to select long-term COPD treatment.

A safer comparison is:

Asthma: Variable symptoms and variable expiratory airflow are central features. COPD: Persistent post-bronchodilator airflow obstruction occurs in a compatible clinical setting. Overlap: Asthma and COPD can coexist. Stable COPD management

Treatment is guided by symptom burden, exacerbation history, comorbidities, inhaler technique, and medication access.

High-yield interventions include:

Smoking-cessation treatment Recommended immunizations Long-acting bronchodilators Pulmonary rehabilitation Regular assessment of inhaler technique Management of comorbidities

Many symptomatic or exacerbation-prone patients receive combined LABA/LAMA therapy. An inhaled corticosteroid is not automatically added because the FEV1 is low. Its role is influenced by exacerbation history, blood eosinophil count, pneumonia risk, and whether the patient also has asthma. LABA/ICS therapy without a LAMA is generally not the preferred COPD combination when an ICS is indicated.

COPD exacerbations

For moderate or severe exacerbations, initial bronchodilator treatment generally includes a SABA, with or without a short-acting muscarinic antagonist. GOLD recommends systemic corticosteroids for up to five days. Antibiotics are reserved for selected patients, particularly when bacterial infection is likely or purulent sputum is present; they are not required for every exacerbation.

Always consider conditions that can mimic a COPD exacerbation, including:

Pneumonia Pulmonary embolism Heart failure Pneumothorax Long-term oxygen therapy

Long-term oxygen therapy is associated with a survival benefit in appropriately selected patients with severe chronic resting hypoxemia. Classic qualifying findings include a stable PaO2 of 55 mm Hg or lower or oxygen saturation of 88% or lower. Selected patients with slightly higher PaO2 values may qualify when cor pulmonale, pulmonary hypertension, or secondary polycythemia is present.

Community-acquired pneumonia

Pneumonia should be considered in patients with an acute cough accompanied by fever, dyspnea, pleuritic chest discomfort, tachypnea, hypoxemia, or focal lung findings such as crackles, egophony, or increased fremitus.

A new infiltrate on chest imaging supports the diagnosis of community-acquired pneumonia and helps distinguish it from uncomplicated acute bronchitis.

Do all outpatients need sputum cultures?

No. Routine sputum Gram stain, sputum culture, and blood cultures are not recommended for otherwise stable adults being treated for CAP as outpatients.

Cultures become more important in severe disease, previous respiratory infection with MRSA or Pseudomonas aeruginosa, or recent hospitalization with parenteral antibiotic exposure.

Outpatient antibiotic selection

For an otherwise healthy outpatient without listed comorbidities or risk factors for resistant pathogens, recommended options include:

Amoxicillin Doxycycline A macrolide only when local pneumococcal macrolide resistance is below 25%

Macrolide monotherapy should not be presented as the routine default in the United States.

For patients with significant comorbidities, recommended options include a beta-lactam such as amoxicillin-clavulanate or an appropriate cephalosporin combined with a macrolide or doxycycline. A respiratory fluoroquinolone is another option in selected patients after evaluating its risks and benefits.

CURB-65 versus PSI

CURB-65 is still worth recognizing:

C: Confusion U: Elevated urea R: Respiratory rate of at least 30 B: Low blood pressure 65: Age 65 or older

However, current ATS/IDSA guidance prefers the Pneumonia Severity Index, used with clinical judgment, over CURB-65 when determining outpatient versus inpatient treatment. Neither score replaces assessment of oxygenation, social circumstances, oral-intake ability, comorbid instability, or reliable follow-up.

Acute bronchitis: an antibiotic-stewardship favorite

Uncomplicated acute bronchitis is usually not treated with antibiotics, regardless of how long the cough has been present.

Also remember:

Green or yellow sputum does not prove that an infection is bacterial.

In an otherwise healthy adult, pneumonia is less likely when vital signs are normal and there are no focal consolidation findings on lung examination.

Pulmonary embolism: probability before testing

Pulmonary embolism may present with sudden dyspnea, pleuritic chest pain, tachycardia, hypoxemia, syncope, hemoptysis, or unexplained anxiety. The examination may be surprisingly unremarkable.

Risk factors include recent surgery or immobilization, active malignancy, previous venous thromboembolism, pregnancy or the postpartum period, estrogen exposure, and thrombophilia.

The diagnostic sequence

Do not order a D-dimer and CT angiogram on every patient with chest pain.

Estimate pretest probability with a validated approach. In a very-low-risk patient, an applicable negative PERC assessment may avoid additional testing. In low- or intermediate-risk patients, use D-dimer testing when appropriate. A low- or intermediate-risk patient with a negative D-dimer generally does not require PE imaging. A positive D-dimer or higher clinical probability usually requires appropriate imaging, commonly CT pulmonary angiography or, in selected circumstances, a ventilation-perfusion scan.

A hemodynamically unstable patient with suspected PE requires emergency evaluation and treatment rather than routine outpatient testing.

Tuberculosis: infection is not the same as active disease

A positive tuberculin skin test or interferon-gamma release assay indicates TB infection. It does not independently determine whether the patient has latent infection or active TB disease.

A patient with a positive test should be evaluated with:

Symptom history Physical examination Chest radiography Sputum testing when active pulmonary disease is suspected

Bacteriologic testing may include smear microscopy, nucleic acid amplification testing, culture, and drug-susceptibility testing. Culture remains the microbiologic gold standard.

An IGRA is generally preferred for people who previously received the BCG vaccine because BCG can cause a false-positive tuberculin skin test.

Latent and active TB treatment

Short-course rifamycin-based regimens, including 3HP, 4R, and 3HR, are preferred for many patients with latent TB infection after active disease has been excluded.

For drug-susceptible active pulmonary TB, the traditional isoniazid, rifampin, pyrazinamide, and ethambutol regimen remains important, but it is no longer the only regimen to recognize. An eligible patient may receive a four-month rifapentine-moxifloxacin regimen, and active-disease treatment can last four, six, or nine months depending on the selected regimen and clinical circumstances. Treatment should be coordinated with public-health and TB experts.

Obstructive sleep apnea

Consider OSA in patients with habitual loud snoring, witnessed apneas, nocturnal choking or gasping, nonrestorative sleep, morning headaches, and excessive daytime sleepiness.

A screening tool such as STOP-BANG estimates risk, but it does not diagnose OSA.

Polysomnography is the standard diagnostic test. A technically adequate home sleep apnea test may be used for an uncomplicated adult who has signs and symptoms suggesting an increased risk of moderate-to-severe OSA. When a home study is negative, inconclusive, or technically inadequate despite continued clinical suspicion, polysomnography should follow.

CPAP or APAP is commonly used for ongoing treatment, particularly when OSA causes excessive sleepiness or impaired quality of life. Follow-up is essential to address mask fit, adherence, pressure tolerance, and persistent symptoms.

Pleural effusion

Pleural effusions are classified as transudative or exudative. Light’s criteria identify an exudate when at least one of the following is present:

Pleural-fluid protein divided by serum protein is greater than 0.5. Pleural-fluid LDH divided by serum LDH is greater than 0.6. Pleural-fluid LDH is greater than two-thirds of the laboratory’s upper limit of normal serum LDH.

Common transudative causes include heart failure and cirrhosis. Common exudative causes include infection, malignancy, pulmonary embolism, and inflammatory disease.

In a patient with a suspected parapneumonic effusion, a pleural-fluid pH of 7.2 or lower suggests a high risk of complicated pleural infection and generally supports drainage when it can be performed safely.

Lung cancer screening

Current USPSTF guidance recommends annual low-dose CT screening for an asymptomatic adult who:

Is 50 to 80 years old Has at least a 20-pack-year smoking history Currently smokes or quit within the previous 15 years

Screening stops after the patient has not smoked for 15 years or when a health condition substantially limits life expectancy or the ability or willingness to undergo curative treatment. A standard chest X-ray is not the recommended lung-cancer screening test.

Pulmonology facts that are too broad to memorize

Avoid relying on these statements:

“Albuterol alone is adequate for mild asthma.” “A bronchodilator response proves asthma.” “No bronchodilator response proves COPD.” “Every outpatient with pneumonia should receive azithromycin.” “Colored sputum means the infection is bacterial.” “CURB-65 alone determines admission.” “Every positive TB test means active tuberculosis.” “Every patient with suspected sleep apnea must begin with an in-laboratory study.” “A low FVC automatically confirms restrictive lung disease.”

The exam is more likely to reward patient-specific reasoning than an absolute rule.

A practical pulmonology study method

For each respiratory condition, build a one-page clinical pathway:

Presentation → key differential → confirming test → initial treatment → monitoring → emergency findings

Then complete mixed questions that force you to distinguish similar presentations. For example:

Asthma exacerbation versus PE COPD exacerbation versus pneumonia Acute bronchitis versus CAP OSA versus medication-related fatigue Pleural effusion versus pneumothorax

Review the rationale even when you answer correctly. A correct guess does not create a reusable clinical rule.

Original FNP pulmonology practice questions Question 1

A 28-year-old woman with asthma uses an albuterol inhaler approximately twice each week. She required oral corticosteroids for an exacerbation six months ago and is not taking a controller medication. Which treatment principle is most appropriate?

A. Continue albuterol alone B. Begin an inhaled corticosteroid–containing regimen C. Begin salmeterol monotherapy D. Begin daily oral prednisone

Correct answer: B. Begin an inhaled corticosteroid–containing regimen

GINA does not recommend SABA-only treatment. An ICS-containing strategy treats the underlying inflammation and reduces exacerbation risk. A LABA should not be used alone in asthma, and long-term oral corticosteroid therapy carries substantial risks.

Question 2

A 64-year-old man with a 35-pack-year smoking history reports chronic exertional dyspnea. Post-bronchodilator spirometry shows an FEV1/FVC ratio of 0.64. His FEV1 increases by 15% and 240 mL after bronchodilator administration. Which interpretation is most accurate?

A. The bronchodilator response excludes COPD B. The findings prove asthma and exclude COPD C. Persistent post-bronchodilator obstruction supports COPD, and the response does not exclude it D. The spirometry is normal

Correct answer: C. Persistent post-bronchodilator obstruction supports COPD, and the response does not exclude it

A post-bronchodilator FEV1/FVC ratio below 0.70 supports COPD in the appropriate clinical context. Bronchodilator responsiveness may occur in COPD and should not be used by itself to distinguish COPD from asthma.

Question 3

A 43-year-old previously healthy adult is diagnosed with community-acquired pneumonia. The patient is hemodynamically stable, has no relevant comorbidities or medication allergies, and can be treated as an outpatient. Which is an appropriate empiric option?

A. Amoxicillin B. Vancomycin C. Ciprofloxacin D. Azithromycin regardless of local resistance

Correct answer: A. Amoxicillin

Amoxicillin and doxycycline are recommended options for otherwise healthy outpatients. Macrolide monotherapy is reserved for locations where pneumococcal macrolide resistance is documented to be below 25%. Vancomycin and antipseudomonal therapy are not routinely indicated for uncomplicated outpatient CAP.

Question 4

A 52-year-old patient is evaluated for possible pulmonary embolism. Clinical pretest probability is low, and a high-sensitivity D-dimer result is negative. What is the most appropriate next step?

A. Order CT pulmonary angiography B. Order a ventilation-perfusion scan C. Begin anticoagulation immediately D. Do not obtain PE imaging unless the clinical situation changes

Correct answer: D. Do not obtain PE imaging unless the clinical situation changes

In a low- or intermediate-risk patient, a negative D-dimer generally excludes PE sufficiently to avoid imaging. Unnecessary CT imaging exposes the patient to radiation, contrast, incidental findings, and additional testing.

Question 5

A 35-year-old healthcare worker who previously received BCG vaccination has a positive IGRA. The patient is asymptomatic. What is the most appropriate next step?

A. Diagnose active pulmonary TB B. Repeat testing with a tuberculin skin test C. Evaluate for active disease, including chest radiography D. Begin a four-drug active-TB regimen immediately

Correct answer: C. Evaluate for active disease, including chest radiography

A positive IGRA establishes TB infection but does not differentiate latent infection from active disease. Active TB must be excluded before latent-infection treatment begins. BCG vaccination does not cause a false-positive IGRA, so repeating the evaluation with a skin test is unnecessary.

Question 6

A 55-year-old adult has loud snoring, witnessed apneas, and significant daytime sleepiness. A technically adequate home sleep apnea test is negative, but clinical suspicion for OSA remains high. What should be done next?

A. Exclude OSA permanently B. Repeat the STOP-BANG questionnaire C. Order polysomnography D. Begin supplemental oxygen without further testing

Correct answer: C. Order polysomnography

A negative or inconclusive home sleep apnea test does not adequately exclude OSA when clinical suspicion remains high. In that situation, attended polysomnography is recommended.

Question 7

A 62-year-old asymptomatic adult currently smokes and has a 25-pack-year history. Which screening test is recommended?

A. Annual chest X-ray B. Annual low-dose chest CT C. Annual sputum cytology D. No screening until symptoms develop

Correct answer: B. Annual low-dose chest CT

This patient meets current USPSTF criteria based on age, smoking exposure, and current smoking status. Screening should use low-dose CT rather than chest radiography.

Final encouragement

You do not need to memorize every respiratory diagnosis in isolation. You need to recognize the pattern, identify the confirming test, select an evidence-based treatment, and know when outpatient management is no longer safe.

The more clinical cases you complete, the faster those patterns become recognizable.

Stop rereading pulmonology. Start making clinical decisions.

Complete a targeted respiratory practice set and test your ability to distinguish asthma, COPD, pneumonia, pulmonary embolism, tuberculosis, sleep apnea, and other high-yield conditions.

START MY PULMONOLOGY PRACTICE SET →

Practice questions are original educational content and are not recalled certification-examination questions. This resource is not affiliated with or endorsed by AANPCB or ANCC. Educational content does not replace current guidelines, prescribing information, or individualized clinical judgment.