Practice targeted AMC-style multiple-choice questions on chronic obstructive pulmonary disease (COPD).
A 70-year-old man with severe COPD (FEV1 30% predicted), on triple inhaled therapy and supplemental oxygen, presents with a 3-day history of increased dyspnoea, productive cough with purulent sputum, and reduced exercise tolerance. He denies fever or chest pain. On examination, he is tachypnoeic (RR 24), saturating 88% on 2 L/min oxygen, with diffuse wheeze and prolonged expiration. His chest X-ray shows hyperinflation but no new infiltrates. His arterial blood gas on 2 L/min oxygen shows pH 7.32, pCO2 68 mmHg, pO2 55 mmHg, bicarbonate 35 mmol/L. Given this presentation, what is the most appropriate immediate management step?
A 57-year-old lady with a chronic cough, a 35 pack-year smoking history, and breathlessness with daily tasks has had spirometry done. What is the likely interpretation of the spirometry results?
A 72-year-old retired builder with a 50 pack-year smoking history presents with a 3-month history of worsening cough, occasional streaks of blood in sputum, and unintentional weight loss of 6 kg. He reports mild dyspnoea on exertion, able to climb one flight of stairs before needing to rest. On examination, he is thin but alert, with an ECOG performance status of 1. Chest auscultation reveals decreased breath sounds over the right upper zone. A chest X-ray shows a 4.5 cm spiculated mass in the right upper lobe. There is no obvious pleural effusion or mediastinal widening. Full blood count, electrolytes, liver function tests, and renal function tests are within normal limits, except for a haemoglobin of 115 g/L. Spirometry shows FEV1 65% predicted, FVC 80% predicted, FEV1/FVC ratio 0.7.
A 68-year-old man with a history of severe chronic obstructive pulmonary disease (COPD) and known secondary pulmonary hypertension presents with increasing dyspnoea and peripheral oedema. His arterial blood gas on room air shows pH 7.31, PaCO2 68 mmHg, PaO2 48 mmHg, and SaO2 80%. His chest X-ray shows hyperinflation and prominent pulmonary arteries. Which of the following interventions is most likely to acutely decrease his pulmonary vascular resistance?
An 80-year-old man with known severe COPD and stable ischaemic heart disease presents to the emergency department with a 2-day history of worsening shortness of breath, increased cough productive of yellow sputum, and ankle swelling. He is usually independent but now struggles to walk across a room. On examination: Alert but distressed. BP 130/85 mmHg, HR 110 bpm, RR 28 breaths/min, Temp 37.8°C, SpO2 88% on room air. Chest examination reveals diffuse wheezes and crackles bilaterally, reduced air entry at the bases. JVP is elevated to 5 cm above the sternal angle. Mild pitting edema to the knees. ECG shows sinus tachycardia, no acute ischaemic changes. Chest X-ray shows hyperinflation, flattened diaphragms, increased bronchial markings, and mild interstitial prominence. Given this presentation, what is the most appropriate initial management step?
A 68-year-old man with known severe COPD presents with a 3-day history of increased cough, purulent sputum, and worsening dyspnoea. He uses salbutamol more frequently. On examination, he is afebrile, respiratory rate 24, SpO2 90% on air. Scattered wheezes are heard. Which of the following is the most appropriate initial management step?
A 70-year-old man with severe COPD (FEV1 35%) presents with increased cough, purulent sputum, and dyspnoea over 48 hours. He uses salbutamol PRN and tiotropium daily. His oxygen saturation is 88% on room air. Chest X-ray shows hyperinflation but no new consolidation. What is the most appropriate initial management step?
An 80-year-old man presents with new confusion, cough, and fever. He has a history of COPD. On exam, he is tachypnoeic and has crackles at the right base. His oxygen saturation is 88% on room air. What is the most appropriate initial investigation?
Initial bronchodilator for stable COPD, mMRC 2, 0 exacerbations/year?
66-year-old man, smoker with mild COPD, on salbutamol and tiotropium, confused regarding usage. Back for GPMP. Care plan?
An 82-year-old man with a history of COPD and mild dementia is brought to the emergency department by his family due to increased confusion over 24 hours. He has had a low-grade fever (37.8°C) and a mild cough for 3 days. On examination, he is drowsy but rousable. His oxygen saturation is 90% on room air. Chest auscultation reveals decreased breath sounds at the bases. A chest X-ray shows bilateral lower lobe infiltrates. His CURB-65 score is 3. Considering the patient's presentation and CURB-65 score, what is the most appropriate initial management plan?