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Medicine

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Respiratory

Question
10 out of 11
 

Mc Connell Sign is seen in? (NEET 2013)



A Ca lung

B Sarcoidosis

C Pulmonary embolism

D Asbestosis

Ans. C

Pulmonary embolism

CT pulmonary angiography (CTPA),

1). Which can show clots down to 5th-order pulmonary arteries (after the 4th branching).

2). This may also be useful for subjects with indeterminate on isotope scans.

Now It is the best screening test (PNQ)(Ref. Hari-18th ed., Pg- 2174)

Extra Edge:

1). V/Q scan (look for perfusion defects with no corresponding ventilation defects). If 'normal', a PE is reliably excluded.

2). Bilateral leg ultrasound (or rarely venograms) may also be sufficient to confirm, but not exclude, a PE in patients with a co-existing clinical DVT.

3). Echo - Mc Connell. Sign: Hypokinesia of free RV wall with normal RV apex motion (H-1654)

Treatment:

1). Anticoagulate with low molecular weight heparin eg dalteparin (AIIMS May 2014)

2). Start oral warfarin.

3). Placement of a vena caval filter Q in patients who develop emboli despite adequate anticoagulation

Respiratory Flashcard List

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