Pastest

Question 1

Acute limb ischaemia 6Ps

Answer 1

pain
pallor
paraesthesia
perishingly cold
paralysis
pulseless.

Question 2

when does irreversible tissue damage occur in acute limb ischaemia?

Answer 2

6h

Question 3

Causes of acute limb ischaemia?

Answer 3

embolus, acute thrombosis, intra arterial injection, embolism (air, fat, amniotic)

Question 4

pathophysiology of acute limb ischaemia?

Answer 4

Occlusion of arterial supply
acute thrombosis/or embolus
decreased perfusion leading to tissue ischaemia

Question 5

ALI due to embolism vs thrombosis

Answer 5

embolism - more acute onset, no hx of claudication, no onset AF,

thrombosis - slower onset due to development of collaterals, pulses absent in the other limb too, significant cardiovascular disease history

Question 6

How to calculate ABPI?

Answer 6

systolic BP at ankle / systolic BP at brachial artery

Question 7

ABPI in arterial disease

Answer 7

<0.9 peripheral artery disease
<0.5 critical limb ischaemia (emergency specialist referral)

Question 8

5 year prognosis in intermittent claudication

Answer 8

5-10% critical ichaemia
1-2% amputation

Question 9

appearance of arterial ulcers:

Answer 9

ankle/foot, over pressure areas
deep, punched out appearance, painful,
pain worse at night

Question 10

appearance of venous ulcer:

Answer 10

gaiter area (between knee and ankle),
around medial malleolus
shallow, irregular (slopping) edges, painful, granulating base

Question 11

Phlegmasia alba dolens

Answer 11

-painful while inflammation-
complication of extensive DVT