QuestionSBA
QuestionChoice
This would be an appropriate investigation if a pulmonary embolism is suspected in a patient with renal impairment, contrast allergy or who is pregnant. This patient has high clinical suspicion of a DVT, not a PE, and therefore V/Q scan is not the correct answer.
10007716
b
V/Q scan
QuestionChoice
This is the investigation of choice when DVT is suspected. This patient has a high clinical suspicion of DVT, therefore they do not need to have a D-Dimer measured first.
10007715
a
Doppler ultrasound
QuestionChoice
A D-dimer is used in patients where there is a low clinical suspicion of DVT. This patient is presenting with a unilateral swollen, erythematous lower limb after recent surgery, which means there is a high clinical suspicion of DVT. Therefore, a D-dimer is not necessary.
10007718
d
D-dimer
QuestionChoice
This is used in the treatment of massive DVTs. The most appropriate investigation for this patient would be to perform a Doppler ultrasound, to first identify whether a DVT is present.
10007719
e
Percutaneous mechanical thrombectomy
QuestionChoice
This is the diagnostic investigation for pulmonary embolism, not DVT.
10007717
c
CT pulmonary angiogram
Concept
Chapter
2693
4621
Deep Vein Thrombosis (DVT)
Topic
157
Haematology
14090
A 33-year-old woman is reviewed on the orthopaedic ward. She underwent foot surgery 3 days ago, and has been struggling to mobilise ever since. Now she reports a painful and swollen left calf.

On examination, her left calf is noticeably swollen compared to the right. It appears erythematous, and is tender on palpation. Both lower limbs are peripherally warm and well-perfused with strong peripheral pulses.

Which of the following is the next best investigation?
a