Deep Vein Thrombosis Flashcards
1
Q
what is DVT
A
a thrombus blocks a vein in the lower limb
2
Q
what are the risk factors
A
active cancer HRT long-haul travel pregnancy long smoking years FH thrombophilias
3
Q
signs
A
usually uni-lateral intense pain swelling varicose veins redness pitting oedema
4
Q
Well’s score
A
assesses the likely risk of a DVT
calf swelling >3cm recent surgery or bedridden for >3 days pitting oedema active cancer leg swelling superficial veins previous DVT localised tenderness along venous system paralysis/plaster of lower legs unknown cause
5
Q
investigations
A
D-dimer - sensitive but not specific
Dopple USS
6
Q
Management
A
DOAC
LMWH/warfarin
give therapy if having to wait for doppler US
3 months - if reversible cause
6 months - non-reversible/continuous DVT occurring/un known cause or active cancer
7
Q
complications of DVT
A
pulmonary embolism
travels up the right side and lodges it self in the lungs
8
Q
well’s score and investigations protocol
A
well’s score - 1 - D-dimer
well’s score>2 - doppler USS within in 4hrs
9
Q
what must be done if doppler USS can’t be done within 4hrs
A
give DOAC
10
Q
when should LMWH be given
A
if there is renal impairment
antiphospholipid syndrome
