Class 16: Venous Reflux Testing Flashcards
what size is considered varicositis?
distended veins that are > 4 mm in diameter
what is telangiectasis?
spider veins – intradermal venules are < 1 mm
what are reticular veins?
dilated subdural veins that are 1-4 mm
what is venous claudication?
veins that can’t drain blood from muscles
what is stasis dermatitis?
inflamed skin can lead to ulcers and possibly venous gangrene
what is superficial thrombophlebitis?
inflammatory reaction of superficial veins due to thrombosis
superficial thrombophlebitis is usually ___ & self-limiting
benign
3 causes of superficial thrombophlebitis
- trauma
- varicose veins
- infection
4 S&S of superficial thrombophlebitis
- erythema
- inflammation
- localized tenderness
- palpable cord & mass
what is more painful: DVT or superficial thrombophlebitis
superficial thrombophlebitis
which part of the GSV is measured when measuring vein diameter?
PROX, MID, DISTAL
where is the proximal GSV & what is the normal diameter?
at the SFJ
<= 9 mm
where is the mid GSV and what is the normal diameter?
at the knee
<= 7.5 mm
where is the distal GSV and what is the normal diameter?
at the ankle
<= 5 mm
2 methods to evaluate perforator veins?
- scan GSV & LSV in TRV –> follow perforators
- scan fascia on medial & posterior calf
what is the purpose of PPG with venous testing?
to evaluate venous valve competency – assesses venous refill time post-exercise
where is the sensor placed with PPG?
about 10 cm proximal to medial malleolus
what exercise does the patient do for PPG testing in the LEV?
5-10 dorsa-flexions & plantar flexions
technique to do PPG testing for LEV
- put sensor ~10 cm proximal to medial malleolus
- patient does 5-10 dorsal-flexions & plantar flexions
- transmit infrared beam
- signal displayed on strip chart recorder
PPG measures ___ changes, not volume changes
reflection
reflected signal strength of PPG is proportional to what?
the number of RBCs in cutaneous circulation
