A 68-year-old woman has a long history of cough with whitish sputum and worsening dyspnoea. Barrel chest and expiratory wheeze. What is the definitive test?
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الإجابة: D. Spirometry
Spirometry is the definitive diagnostic test for COPD: post-bronchodilator FEV1/FVC <0.70 confirms persistent airflow limitation. CXR has low sensitivity and is used to exclude other diagnoses. CT and ECG/BNP do not diagnose COPD.
ليش كل خيار صح أو غلط
-
A
ليش غلط
Chest imaging is not needed for diagnosis of COPD; it is considered to look for alternative diagnoses, comorbidities or complications, even though a CXR may show hyperinflation (barrel chest).
✓ COPD.pdf · p. 6 -
B
ليش غلط
An ECG is used to rule out cardiac causes of dyspnea (e.g. MI) or to show right heart strain from pulmonary hypertension; it does not diagnose COPD.
✓ 5• COPD [Notes].pdf · p. 8 -
C
ليش غلط
CT chest findings are similar to CXR (it may show emphysema patterns), and chest imaging is not needed for diagnosis; spirometry is the definitive test.
✓ COPD.pdf · p. 6 -
D
ليش صح
Spirometry is the definitive diagnostic test for COPD: decreased FEV1 and FEV1/FVC <0.7 confirm obstruction.
✓ Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 3
- المصدر
- Step Up To Medicine 6th Edition 2024 (COPD).pdf · p. 3
COPD.pdf · p. 5 - المحاضرة
- COPD · Pulmonology · Module B
- ظهر في
- MED41 ♀ EOM B