Question

A 28-year-old presents with pleuritic chest pain and shortness of breath. A Wells score suggests intermediate probability of pulmonary embolism. The D-dimer is elevated. Which investigation is the best next step to confirm the diagnosis?

Accepted Answer

CT Pulmonary Angiogram (CTPA)

Answer

Ventilation-perfusion (V/Q) scan

Answer

Pulmonary angiography

Answer

Lower limb Doppler ultrasound

Answer

Echocardiogram

Practice question

A 28-year-old presents with pleuritic chest pain and shortness of breath. A Wells score suggests intermediate probability of pulmonary embolism. The D-dimer is elevated. Which investigation is the best next step to confirm the diagnosis?