venous disorders

Prolonged standing causes…

Obstruction of upward blood flow & places pressure on the valves

Main 2 Conditions that Cause Valve Weakness

• Obesity

• Pregnancy

Varicose Veins

• Veins that become distorted due to high pressure

Edema at the lower extremities is caused by…

• Venous congestion

• High hydrostatic capillary pressure

Deep veins are susceptible to…

Edema

Venous Thromboembolism (VTE)

• DVT + PE

(DVT —> PE)

Virchows Triad

• Venous stasis

• Vascular damage

• Hypercoagulability

Upper extremity DVT is caused by

A peripherally inserted central catheter (PICC)

Homans Sign

• pain during dorsiflexion (DVT)

  • not the most accurate

Wells Criteria

• used to evaluated leg swelling in DVT

Ventilation Perfusion Scan/Lung Can

• secondary diagnostic test for patients that cant tolerate iv contrast

International Normalized Ratio

• blood test to monitor clotting time to avoid excess anticoagulation

Greedfield Filter

• IVC filter inserted to block clots from traveling into pulmonary circulation

Greenfield Filter used if…

1) Patient can’t take coagulants

2) VTE is present despite treatment

Stasis Dermatitis

• dusky discoloration due to the buildup of Hemosiderin (iron containing pigment)

Hemosiderin

• iron containing pigment

Sclerotherapy

• injects chemical into veins