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DVT423- TR1
USIDMS LE Venous Insufficiency
| Question | Answer |
|---|---|
| Which type of venous insufficiency is caused by valve damage from previous DVT or venous outflow obstruction? | Secondary |
| Before doing a venous insufficiency study, what should be ruled out? | DVT |
| How much time is considered abnormal for venous reflux in deep veins? | Greater than 1 second |
| Perforator veins run from the _______ system to the ________ system. | Superficial, deep |
| What does Photoplethysmography meaure? | How quickly the veins fill back up |
| What does Air Plethysmography measure? | How well the calf muscle pump works |
| What is considered the "gold standard" to evaluate DVT and venous insufficiency? | Contrast Venography |
| What 3 things make up virchow's triad? | Hypercoagulable state, vascular wall injury, circulatory stasis |
| Where are venous ulcers normally located? What is the usual shape? | Near medial malleolus. Shallow, irregular shape. |
| Where are arterial ulcers normally located? What is the usual shape? | Bony prominences. Deep, perfectly round. |