X-ray (venography)
- Not performed at Unilab departments

Ultrasound
- With suspected deep venous thrombosis in vena poplitea and vena femoralis

NB: The deep veins of the lower leg are not suitable for ultrasound examination.

CT (angiography)
- With suspected pelvic venous thrombosisChronic pulmonary embolism

NB: If there is a strong suspicion of acute pulmonary embolism, the patient should be referred to hospital.

MRI (angiography)
- Suspected venous sinus thrombosis