Numbers Game of Vascular US Flashcards
To know all the numbers we need to know while doing vascular sonography
An effective calf pump ejects at least what percentage of blood from the calf?
> 60%
an effective calf pump increases venous return to the heart while decreasing venous pooling, venous volume, and venous pressure
What is the ankle hydrostatic pressure when supine? in mmHg.
0mmHg
What is the hydrostatic pressure at the ankle with standing? in mmHg
100mmHg
Venous Photoplethsymography
Venous reactive time of greater than or equal to how many seconds is considered normal?
Without a tourniquet
> 20 seconds
Very fast filling indicates that vessel filling is retrograde which would be done via incompetent valves
Venous Air Plethysmography
A normal VFI (venous filling index) is _
<2.0
Venous Air Plethysmography
Minor to Moderate VFI (venous filling index) is _
> 2.0-10.0
Venous Air Plethysmography
Severe VFI (venous filling index) is _
> 10.0
