Chaoter 17- Hemodialysis Access Eval Flashcards
What is dialysis ?
The treatment for renal failure
Filtering blood outside of the body
How does the process of dialysis work
Blood is removed from the artery, filtered thru dialysis machine, and returned to body thru veins
Dialysis is made possible thru the creation of what connection between arteries and veins?
Arteriovenous fistulas
There are two types of dialysis accesses, what are they,
Native autogenius fistula and synthetic grafts
Synthetic grafts are usually Gortex, and can either be straight or looped
True or false
True
What is the word that describes a radial artery to cephalic vein fistula? Very important
Breccia-Cemino fistula
Which dialysis access is better, the synthetic ones or the autogenius native fistulas?
Native fistulas
If we feel a thrill of vibration over the fistula location, is this normal or abnormal?
Normal in dialysis patients
Where’s the most common spot for a stenosis to occur in a dialysis patients’ access point?
The venous anastomosis or outflow vein
This happens as a response to the high volume
Typically these grafts are going to have _____ resistive flow and high flow.
High or low?
Low resistive, constant flow
If we see high resistive flow or dampened flow, what should we expect?
Abnormal.. Inflow disease
What is the “steal syndrome” ?
Arterial blood flow distal to fistula is reversed flowing into the venous circulation
What symptoms would a patient with “steal syndrome” have?
Hand ischemia such as pain and pallor
What is the preferred method to determine “steal syndrome”
Getting PPG tracings on at least two fingers
When we manually compress the fistula while doing PPG tracings, and the flow improves, what does this indicate?
Steal syndrome Ina dialysis patient
