angiography/interventional Flashcards
Pts are denied solid food how many hrs prior to angiography
8 hrs
Is vessel dissection one of the risks of angiography
Yes-true
While the post procedure pt remains on bed rest, the head of the bed may be elevated ____ degrees
30
Post procedure bed rest should be a minimum of _____
4 hrs
Impaired renal function is a ____ to angiography
contraindication
Seldinger Technique sequence
- Skin is incised
- needle advanced through artery
- needle is withdrawn until blood returns
- guidewire is inserted
- needle is withdrawn
- catheter is introduced
- catheter is advanced
- guidewire is removed
- catheter is removed
removes overlying structures to better visualize vessels of interest
digital subtraction
The quality of a subtracted image can be improved by ___ or remasking
pixel-shifting
A post processing technique used to position a guidewire, catheter, or other interventional device
roadmapping
What affects flow rate of contrast media?
viscosity of contrast and length and diameter of catheter
How to reduce contrast viscosity
increase the temperature
Slow or manual injector control may be used to remove ___ from the syringe
air bubbles
Selected vessels accessed from aortic arch
5-10 ml of contrast
cerebrial angiography
30-50 ml of contrast
LAO obtained by rotating c-arm 45 degrees
thoracic angiography
Indications include atypical chest pain
evaluation includes a ventriculogram
Angio-cardiography