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vn anatomy
venous hemodynamics
Question | Answer |
---|---|
deep veins carry __ % of blood volume | 85% |
from the adductor canal to the CFV | Femoral Vein |
paired veins that lie along the intermuscular septum | posterior tibial veins |
peripheral resistance in cap beds may __ in response to heat, inflammation, and infection | Decrease |
what is the distal venous pressure when lying down | 10mmHg |
paired veins that lie close to the medial aspect of the fibula | peroneal veins |
cleopatra's eye | GSV |
T/F a high to low pressure gradient must exist for perfusion to occur | True |
paired veins that lie above the interosseous membrane | ATVs |
what is the distal venous pressure when standing and can cause what if standing to long | 80mmHg, decrease in CO/Hypotension |
most common perforator in the calf | Cocketts |
unilateral continuous venous flow is suggestive of | ilsilateral thrombosis in the Iliac or extrinsic compression |
during inhalation the venous outflow is | reduce- due to increase in intra-abd pressure collapsing the IVC |
Name the 3 pump sysems | foot pump, calf pump, thigh pump |
varicose veins, claudication, stasis dermatitis, stasis ulceration are symptoms of DVT or Insufficiency? | Venous Insufficiency |
pulsatile flow in the CFV- bilaterally suggest | CHF |
bilateral continuous waveform suggest | PE, supine position, shallow breathing, or IVC obstruction |
T/F no muscle contraction, no pump action | True |
T/F dysfunctional valves are Primary insufficiency | False: Primary- congenital absence of valves. Secondary- dysfunctional, damaged valves |
primary venous return | the calf veno-motor pump |
T/F thrombophlebitis occurs in the deep venous system | False- superficial |
superficial system in the upper ext | cephalic, basilic, median cubital |
palpable distended veins > 4mm in diameter | varicose veins |