Deep Vein Thrombosis Flashcards Preview

Cardiovascular System > Deep Vein Thrombosis > Flashcards

Flashcards in Deep Vein Thrombosis Deck (9)
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1

Who do DVTs occur in. (2)

25-50% of surgical patients.
Many non-surgical patients as well.

2

What is a features of below knee DVTs. (2)

65% are asymptomatic.
They rarely embolize to the lungs.

3

What are the risk factors for developing a DVT. (10)

Increased age.
Pregnancy.
Synthetic oestrogen.
Trauma.
Surgery (especially pelvic/orthopaedic).
Past DVT.
Cancer.
Obesity.
Immobility.
Thrombophilia.

4

What are the sings of a DVT on physical exam. (6)

Calf warmth/tenderness/swelling/erythema.
Mild fever.
Pitting oedema.

5

What is the differential for a DV. (3)

Cellulitis.
Ruptured Baker's cyst.
DVT.
Both of the above may coexist with a DVT.

6

What tests should be done in a patient presenting with a DVT. *(4)

D dimer.
Ultrasound.
Thrombophilia testing before commencing anticoagulation therapy.
Investigate for underlying malignancy.

7

How do you prevent DVTs. (5)

Stop the pill 4 weeks pre op.
Mobilize early.
LMWH.
Graduated compression stockings.
Fondaparinux (factor Xa inhibitor).

8

How do you treat a DVT. (4)

LMWH or fondaparinux.
Cancer patients should receive LMWH for 6 months and then review. In others start warfarin with LMWH, stop heparin when INR 2-3.
Inferior vena caval filters may be used in active bleeding, or when anticoagulants fail to minimize risk of pulmonary embolus.
Graduated compression stockings help prevent long term complications of DVT.

9

What are the long term complications of DVT. (3)

Pain.
Swelling.
Skin changes.