Question

A 54-year-old hospitalised patient suddenly becomes tachypnoeic and tachycardic. He complains of pleuritic chest pain. His oxygen saturation drops to 90%. D-dimer is elevated. What is the most appropriate next investigation?

Accepted Answer

CT pulmonary angiogram (CTPA)

Answer

Ventilation-perfusion (V/Q) scan

Answer

Lower limb Doppler ultrasound

Answer

Pulmonary angiography

Answer

Echocardiography

Practice question

A 54-year-old hospitalised patient suddenly becomes tachypnoeic and tachycardic. He complains of pleuritic chest pain. His oxygen saturation drops to 90%. D-dimer is elevated. What is the most appropriate next investigation?