DVT Flashcards

1
Q

What are the clinical features of DVT?

A
Unilateral calf swelling 
Unilateral calf tenderness
Mild fever
Pitting oedema
Prominent superficial veins
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2
Q

How do you find out if a calf is swollen?

A

Measure both calves 10cm below tibial tuberosity

> 3cm difference = swollen

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3
Q

What are differentials for DVT?

A

Muscle strain
Lymphangitis
Cellulitis

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4
Q

What is phlegmasia cerulea dolens?

A

Painful blue leg swelling

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5
Q

What is a provoked DVT?

A

Within 3 months of a major clinical risk factor

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6
Q

What is an unprovoked DVT?

A

Occurs without prior clinical trigger

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7
Q

Investigations for suspected DVT

A

Bloods

  • FBC
  • LFTs
  • U+Es
  • INR
  • aPTT

Doppler venous flow

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8
Q

What is the Wells score?

A

Score for risk of DVT

<2 = low probability
>/=2 = moderate probability
>/=3 = high probability
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9
Q

What are the criteria for the Wells score?

A
Cancer
Bedridden 
Calf swelling
Pitting oedema
Previous DVT
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10
Q

What test can you do if its a low probability?

A

D-dimer

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11
Q

Is D-dimer a good test?

A

Sensitive but not specific

If low - proves no DVT
If high - requires further investigations

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12
Q

What can cause a high D-dimer?

A

MI
DIC
Stroke
Pregnancy

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13
Q

What are potential treatments for a DVT?

A

DOAC

LMWH

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