MD - Doctor of Medicine Pulmonary Disease Management Questions and Answers — Questions and Answers
Question 1: A 68-year-old male with a significant smoking history presents with increased dyspnea, cough, and sputum production. His baseline is managed with a LAMA/LABA inhaler. He has had two moderate exacerbations in the past year. According to the most recent GOLD guidelines, what is the most appropriate next step in managing his stable COPD?
- Add an inhaled corticosteroid (ICS) to his current regimen. (Correct answer)
- Switch to a short-acting beta-agonist (SABA) as needed.
- Initiate long-term oral corticosteroid therapy.
- Prescribe a daily macrolide antibiotic.
Correct answer: Add an inhaled corticosteroid (ICS) to his current regimen.
According to the GOLD 2024 report, for a patient with persistent exacerbations on LAMA/LABA therapy, particularly with a history of ≥2 moderate exacerbations in the last year, the next step is to add an inhaled corticosteroid (ICS), creating a triple therapy regimen (LAMA/LABA/ICS). SABA is for rescue use, not maintenance. Long-term oral corticosteroids have significant side effects and are not recommended for stable management. Daily macrolides are considered for former smokers with persistent exacerbations but after triple therapy has been optimized.
Question 2: A 45-year-old female presents to the emergency department with a severe asthma exacerbation, refractory to initial treatment with nebulized albuterol/ipratropium and systemic corticosteroids. She is tachypneic and speaking in single words. Which of the following intravenous medications is most appropriate to administer as an adjunctive therapy in this situation?
- Furosemide
- Magnesium sulfate (Correct answer)
- Aminophylline
- Sodium bicarbonate
Correct answer: Magnesium sulfate
For severe asthma exacerbations not responding to initial standard therapies (SABAs, anticholinergics, and systemic corticosteroids), intravenous magnesium sulfate is recommended as an adjunctive treatment. It has bronchodilatory properties and can improve lung function and reduce hospitalization rates in severe cases. Furosemide is a diuretic, aminophylline is rarely used due to its narrow therapeutic index and significant side effects, and sodium bicarbonate is not indicated for asthma.
Question 3: A 72-year-old patient is being evaluated for suspected idiopathic pulmonary fibrosis (IPF). Which of the following findings on high-resolution computed tomography (HRCT) of the chest is most characteristic of a 'definite UIP' (Usual Interstitial Pneumonia) pattern, often allowing for a confident diagnosis of IPF without a lung biopsy?
- Predominantly upper lobe ground-glass opacities and micronodules.
- Widespread consolidation and pleural effusions.
- Subpleural, basal predominant honeycombing and traction bronchiectasis. (Correct answer)
- Peribronchovascular-centered reticulation with sparing of the subpleural lung.
Correct answer: Subpleural, basal predominant honeycombing and traction bronchiectasis.
The hallmark of a definite Usual Interstitial Pneumonia (UIP) pattern on HRCT, which is the radiologic signature of IPF, is the presence of subpleural and basal predominant reticular abnormalities, honeycombing, and traction bronchiectasis. The other patterns described are inconsistent with a UIP pattern and suggest alternative diagnoses.
Question 4: A 65-year-old man presents with a 3-day history of fever, productive cough, and shortness of breath. A chest x-ray confirms a right lower lobe infiltrate. His vitals are: RR 32/min, BP 88/55 mmHg, and he is newly confused. His BUN is 25 mg/dL. Based on the CURB-65 score, what is the most appropriate management setting for this patient with community-acquired pneumonia (CAP)?
- Outpatient management with oral antibiotics.
- Inpatient hospital admission to a general medical ward.
- Consideration for outpatient management with close follow-up.
- Inpatient hospital admission, likely to the ICU. (Correct answer)
Correct answer: Inpatient hospital admission, likely to the ICU.
The CURB-65 score helps determine the severity and mortality risk of community-acquired pneumonia. The patient scores 1 point for Confusion, 1 for Urea (>7 mmol/L or ~19.6 mg/dL), 1 for Respiratory rate (≥30/min), and 1 for Blood pressure (systolic <90 or diastolic ≤60). His age (≥65) is not given as a factor in the stem, but even with these 4 points, his score is ≥3. A score of 3 or more indicates high-risk CAP with high mortality, warranting urgent inpatient admission and consideration for ICU level of care.
Question 5: Which of the following is considered the first-line and most effective treatment for most patients with moderate to severe obstructive sleep apnea (OSA)?
- Mandibular advancement device
- Uvulopalatopharyngoplasty (UPPP)
- Continuous Positive Airway Pressure (CPAP) (Correct answer)
- Weight loss and positional therapy
Correct answer: Continuous Positive Airway Pressure (CPAP)
Continuous Positive Airway Pressure (CPAP) therapy is the gold standard and most effective first-line treatment for moderate to severe obstructive sleep apnea. It works by providing a continuous stream of air to keep the airway open during sleep. While mandibular advancement devices, surgery, and lifestyle modifications like weight loss are also treatment options, they are typically considered for mild to moderate OSA or for patients who cannot tolerate CPAP.
Question 6: A 55-year-old woman is newly diagnosed with Pulmonary Arterial Hypertension (PAH), classified as low-to-intermediate risk. She has no significant comorbidities. According to current treatment guidelines, what is the recommended initial therapeutic strategy?
- Monotherapy with a calcium channel blocker.
- Monotherapy with an endothelin receptor antagonist (ERA).
- Initial combination therapy with an ERA and a PDE-5 inhibitor. (Correct answer)
- Immediate referral for lung transplantation evaluation.
Correct answer: Initial combination therapy with an ERA and a PDE-5 inhibitor.
Current guidelines from bodies like the ESC/ERS recommend initial oral combination therapy for most newly diagnosed PAH patients who are not at high risk. The most common initial combination is an endothelin receptor antagonist (ERA) and a phosphodiesterase-5 (PDE-5) inhibitor. Monotherapy is generally reserved for specific situations, and calcium channel blocker monotherapy is only appropriate for the small subset of patients who show a positive response to acute vasoreactivity testing. Immediate transplant referral is reserved for high-risk patients.
MD - Doctor of Medicine Pulmonary Disease Management Questions and Answers
A 68-year-old male with a significant smoking history presents with increased dyspnea, cough, and sputum production.
His baseline is managed with a LAMA/LABA inhaler.
He has had two moderate exacerbations in the past year.
According to the most recent GOLD guidelines, what is the most appropriate next step in managing his stable COPD?