Week 11 Part 2 + Book Flashcards
(16 cards)
An Abnormal BCV doppler will appear as what?
Non-phasic and/or non-pulsatile
What is a key indicator of proximal BCV obstruction?
retrograde flow in the IJV or SCV
What can commonly cause the IJV to be compressed?
Hematoma from a Carotid Endarterectomy
You should always reference what structure when visualizing the IJV?
Common Carotid Artery
What vessel acts as a collateral if there is an occlusion of the proximal SCV?
Thyrocervical Trunk
What acts as a collateral if there is an obstruction in the IJV?
the facial vein or the Superior thyroid vein
What acts as a collateral if there is a BCV occlusion?
The external jugular with the anterior jugular or internal jugular.
What acts as a collateral if there is a distal SCV obstruction?
Thoracic Vein or Cephalic Vein
What are signs of thrombus in the UE?
incompressibility
Lack of color
No flow within area of suspected thrombus
Presence of collaterals
Doppler signal distal to an occluded vein lacks what?
pulsatility and phasicity
Unless there are multiple, large collaterals; you should expect ____________ distal to a total occlusion.
poor flow
What is very important when doing UE doppler exams?
to compare signals side to side
Describe what a mirror image is?
an artifact that duplicates an image below the actual image
If an UE is totally occluded, what should you observe distal to the occlusion?
abnormal doppler signal
distal swelling
What are treatment options for UE thrombus?
- If superficial: rest, heat, elevation, external compression
- Anticoags
- Central venous catheter removal
- Thrombolytic therapy
- Decompression of thoracic outlet
- Endovascular stent or venous reconstruction
Instead of doing compressions of the SCV, you should have the patient do what?
perform the sniff test
