Varicose veins Flashcards
what is lipodermatosclerosis?
sub-cut fibrosis causes skin hardness
what is hypodermitis sclerodermiformis?
inflammation and necrosis of sub-cut adipose tissue
what is buerger’s test?
tests for elevation pallor
n = stays pink
vascular disease = raise = pale, lower = bright red - dusky blue
how would you calculate ABPI?
highest ankle pressure/highest brachial pressure
what does ABPI measure?
BP reaching the dorsal lower limb
what are the figures for N, mild disease, mod disease and severe disease in ABPI?
N >1
mild 0.9 - 0.7
mod 0.7 - 0.5
severe pain
when should you e wary of ABPI values?
DM
severe oedema
calcification of arteries
if you were measuring venous refill time, what would fast venous refill indicate?
venous incompetancy
what pressure do you inflate the cuff to when measuring venous refill time?
60mmHg
what are the n venous refill times for no cuff, cuff below the knee, cuff above the knee?
no cuff - 8.1s
cuff below the knee - 12.3s
cuff above the knee - 21.9s
if you doppler a vessel, what type of flow would you expect to see?
triphasic
what would biphasic or monophasic vessel doppler indicate?
monophasic - stenosis
biphasic - severe vascular disease
which vessel would cause this ulcer - lower 1/3 of leg, pretibial, medial side?
venous
which vessel would cause this ulcer - tips of toes, between toes, phalangeal heads, lateral leg, over metatarsal heads?
arterial
which vessel would cause this ulcer - old, DM, smoking, HTN, inability to elevate?
arterial