A 25-year-old man presented to emergency department with progressive dyspnea associated with cough and right pleuritic chest pain. His past medical history is unremarkable. Chest x- ray showed right pleural effusion. Right diagnostic thoracentesis was conducted. Which of the following pleural fluid analysis has high sensitivity to pleural tuberculosis?
سؤال مجاني 2 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: B. Pleural fluid adenosine deaminase
Pleural fluid adenosine deaminase (ADA) is the most sensitive pleural-fluid test for tuberculous pleuritis (ADA >40). The lecture describes it as highly specific and sensitive. The AFB stain is often negative in TB pleurisy, which is why it appears as '+/-'. Pleural pH and glucose are low in several conditions (the MEAT causes) and are not specific to TB.
ليش كل خيار صح أو غلط
-
A
ليش غلط
The AFB stain is listed only as +/- in TB pleuritis (often negative); ADA is the test described as highly specific and sensitive.
✓ Pleural effusion.pdf · p. 7 -
B
ليش صح
Pleural ADA is highly specific and sensitive for tuberculous pleuritis.
✓ Pleural effusion.pdf · p. 7 -
C
ليش غلط
A low pH (below 7.2) is a feature of empyema (and rheumatoid effusion), so it is not the TB-sensitive test.
✓ (Y4)-(M B) Pneumonia and pleural effusion - Resident.pdf · p. 21 -
D
ليش غلط
Low glucose is shared by Malignancy, Empyema, Arthritis and TB (the MEAT causes), so it is not specific to TB.
✓ Pleural effusion.pdf · p. 5
- المصدر
- (Y4)-(M B) Pneumonia and pleural effusion - Resident.pdf · p. 21
Pleural effusion.pdf · p. 7 - المحاضرة
- Pleural Effusion & Pneumothorax · Pulmonology · Module B
- ظهر في
- MED43 ♂ Quiz B