A 60 year old woman was bedridden for 2 months complains of breathlessness & chest pain, chest X-ray is normal.
Next step is
Clinical picture s/o P.embolism Next step should be CT Pulmo angiography - not there in option thus V/Q scan next best.
V/Q scan
Echocardiography
Pulmonary wedge angiography
Pulmonary arteriography.