Osmosis: Thrombophebitis Flashcards
what is thrombophlebitis?
a blood clot that gets lodged in a vein and causes inflammation
normally the process start with damage to the endothelium, then there’s an immediate vasoconstriction which limits the blood flow
then there’s platelets that adhere to damaged vessel and get activated by collagen and TF from the tunica media; platelets then recruit additional platelets to form platelet plug = primary hemostasis –> then coagulation cascade is activated and a hard clot at the site of the injury is formed
as the clot grows, blood flow decreases and pressure increases – the clot might start naturally breaking down = D-dimer levels increase
what 3 factors lead to thrombosis?
Virchow’s traid
- slow blood flow
- hypercoagulation (genetic or acquired reasons)
- damage to endothelial cell lining
where does thrombophlebitis occur?
superficial veins = thromboplebitis
deep veins = thrombosis
site of IV insertion that’s been there for days or weeks
which conditions increase thrombophlebitis risk?
- Trousseau syndrome = pancreatic cancer
2. Mondor’s disease = in the breast
what are the complications of thrombophlebitis?
thrombophlebitis can get infected or an infection can cause thromboplebitis
commonly caused by staphylococcus aureus
symptoms of thrombophlebitis?
- pain
- swelling
- redness
- warmth
- vein hardening
- fevers or shock if there’s septic thrombophlebitis
how do you diagnose thrombophlebitis?
- ultrasound
- venography
- D-dimer test
how do you treat thrombophlebitis?
small clots may resolve on their own but larger clots need intervention
- thrombolytic enzymes
- thrombectomy
how do you prevent thrombophlebitis?
- warfarin
- heparin
prevent clot formation by inhibiting coagulation cascade
- compression stockings
- calf exercises