Dang, your study time went from 2 months to 2 days.

I have been Dr. Googling CAC score interpretation, and found that different diagnostic centers and hospitals do have slightly different action plans, but be prepared for referral to a cardiologist, a stress test, and prescribed aspirin, supplements and statins.

This doctor spelled out his action plan, but he looks like Vincent Price and the article is not dated, so it may apply only to vampires. Even under 100, with your cholesterol, statins would be prescribed.
http://www.dmg.net/eng/about_corona...iumscoring.html

Duke uses "Incorporating Novel Risk Factors" in addition to their standard Risk Evaluation. I assumed the standard was the Framingham Risk Score (uses total and HDL for cholesterol) but did not ask my GP that. They could have also used one of the new formulas for cholesterol. http://news.heart.org/doctor-discus...erol-treatment/ or http://forum.lowcarber.org/showthread.php?t=475733

So not knowing which baseline risk tool was used, I was sent:

Four Novel Risk Factors: Criteria for revising the Risk Assessment UPWARD.

CAC Score: Greater than 300 Agatston units or 75th percentile for Age, Gender and Ethnicity

Family History of premature CVD: First degree relative with CVD

HS C-Reactive protein : Greater than 2 mg/L

Ankle-brachial Index: Less than 0.9

You dont need all the "novel risk factors", but if the doctor ordered one of them, that is how she would handle the result. As you can see, with 300+ you would have a fast call back from Duke too (Top 5 hospital for Cardiology in the US by US News&Report). Which may not account for anything, but by the practice standards in locations I found, managing your risk would include statins. You can choose to do whatever you want about any meds or further tests, but your doctor for insurance or medical group reasons, will follow her practice's standards of care.