A 38-year-old man is being evaluated for shortness of breath, and cough for 3 months. He started working as a research laboratory technician 6 months ago, spending most of his day maintaining rodent colonies. The patient's breathing improved when he attended a weeklong conference in another city. Pulmonary examination reveals normal lung sounds. Chest x-ray is normal, Baseline spirometry demonstrates normal air flow rates. Which of the following diagnostic tests will be most useful for establishing the diagnosis?
سؤال مجاني 1 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: D. Peak expiratory flow measurements at home and work
Symptoms that improve away from the workplace (rodent allergen exposure) suggest occupational asthma. Baseline spirometry is normal, and in that situation the sources use peak expiratory flow monitoring, which can also diagnose occupational asthma by comparing readings at work and at home. CT and CBC are not diagnostic, and intranasal steroid is a treatment, not a test.
ليش كل خيار صح أو غلط
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A
ليش غلط
Imaging is not routinely recommended in asthma and is used for the differential diagnosis, not to confirm asthma or link it to work. His chest x-ray is already normal.
✓ Asthma & asthma exacerbation.pdf · p. 5 -
C
ليش غلط
CBC may show eosinophilia, but it is only listed as an additional supportive study; it does not show that symptoms are linked to the workplace.
✓ Asthma & asthma exacerbation.pdf · p. 5 -
D
ليش صح
His baseline spirometry is normal, so it has not confirmed asthma. The next step is PEF monitoring, which is used when spirometry is not available or is equivocal and can also be used to diagnose occupational asthma, the picture here (symptoms improve away from the rodent lab).
✓ view-material.pdf · p. 29
- المصدر
- view-material.pdf · p. 29
Asthma & asthma exacerbation.pdf · p. 5 - المحاضرة
- Asthma · Pulmonology · Module B
- ظهر في
- Respi bank