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Do Vitamin D Levels Affect Cholesterol? (links at bottom) Higher vitamin D levels appear to be associated with higher total cholesterol levels and higher HDL cholesterol levels, according to a new study presented at the American College of Cardiology's (ACC) 65th Annual Scientific Sessions.1...

I've been steady on 50mcg levothyroxine for 5+ year now. TSH is always in the 1.0 - 1.3 range, so i haven't even checked Free T3, or Free T4 in last 5 years, and I've never had Reverse T3 checked. I'm going for blood work on 4/13 and it will include TSH, Free T3 & Free T4. Does anyone...

Can someone clarify which test I should use? Doctor could not find "sensitive" version and asked me to specify which test. It looks like ARUP labs is their preferred provider. http://ltd.aruplab.com/ 1.2006160Free Estradiol by ED/LC-MS/MS Ordering Recommendation: Direct measure of free...

Nelson (or others), can you clarify questions I have regarding blood work? FYI, I'm in the process of applying to Physician Assistant graduate programs, so I'm fairly well educated in basic chemistry, physiology, etc. 1) Is SHBG approximation using Total & Free Testosterone adequate, or is it...