A 55-year-old man has had chronic cough with clear sputum production for 4 years. He smoked for 25 years, one pack of cigarettes per day. His chest x-ray shows hyperinflation. Arterial blood gas shows a pH 7.38. PCO2 40 mmHg, and PO2 67 mmHg. The spirometry shows an FEV1/FVC 45% without bronchodilator responds Which of the following is the most important treatment modality for this patient?
سؤال مجاني 1 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: D. Smoking cessation
Smoking cessation is the most important intervention in COPD: it slows FEV1 decline and prolongs survival. Home oxygen is not indicated because his PaO2 is 67 mmHg; the LTOT threshold is PaO2 <=55 mmHg (or SaO2 <=88%). Oral steroids are for exacerbations, and a LABA treats symptoms without the same effect on outcome.
ليش كل خيار صح أو غلط
-
A
ليش غلط
Systemic (oral) steroids are only for acute exacerbations and are not used long term, even in severe COPD.
✓ Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 9 -
B
ليش غلط
Home oxygen needs PaO2 ≤ 55 mm Hg or SaO2 ≤ 88% at rest; his PaO2 is 67, so he does not qualify.
✓ COPD.pdf · p. 9 -
C
ليش غلط
A LABA is a bronchodilator that provides symptomatic relief; it is not the most important treatment, which is smoking cessation.
✓ Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 7 -
D
ليش صح
Smoking cessation is the most important intervention: continued smoking accelerates disease progression, and quitting greatly slows it.
✓ Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 7
- المصدر
- Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 7
COPD.pdf · p. 9 - المحاضرة
- COPD · Pulmonology · Module B
- ظهر في
- Respi bank · MED41 ♀ EOM B