As a cost containment method in health insurance, most insurers require health care provider authorization. What is this procedure called?

The creator of a trust is called 

Based on the description, name the BEST type or types of insurance to recommend. Julia wishes to purchase a permanent life insurance policy with flexible premiums. 

Proximal to a significant stenosis, the CCA may exhibit a wave form similar to:

Which of the following are a duplex indication of a totally occluded internal carotid artery?

Where does the Doppler  waveform contour describes as “string sign” usually occur?

Using this image and spectral Doppler, this would most likely be;deformed car stent(1).jpg

Critical stenosis occurs when cross-sectional area has been reduced by _______, which is a _______ diameter reduction. 

Restenosis that occurs 5-10 years post endarterectomy is considered to be intimal hyperplasia.

If a stenosis measures or appears less than 50% by image/caliber but velocity acceleration with post stenotic turbulence occurs, the lesion is considered greater than: