Question
A patient presented with dyspnea.ECG shows the following features.What would be the most definitive investigation of choice for diagnosis in this patient?
A. Pulmonary Arteriorgraphy.
B. ECG.
C. Venography.
D. Radioisotope perfusion pulmonary scintigraphy.
Show Answer
|
Correct Answer » A
Explanation
|
|
Ans: A. Pulmonary Arteriography
The patient is probably suffering from Pulmonary Embolism.
- ECG in the image shows:A large S wave in lead I, a Q wave in lead III and an inverted T wave in lead III
- The most common ECG finding in the setting of a pulmonary embolism is sinus tachycardia. However, the “S1Q3T3” pattern of acute cor pulmonale is classic; this is termed the McGinn-White Sign.
Pulmonary Embolism
- Most definitive investigation :Pulmonary angiography is an invasive procedure, and it is the most definitive procedure. It is however certainly not the initial investigation of choice.
- The initial investigation of choice in a case of suspected pulmonary embolism is CT of the chest with intravenous contrast.
