As you know from this article a normal TSH range depending on the lab is around 0.5 to 5.0 which is why your TSH of 4.46 was determined normal, however the very fact that your first TSH test showed up 6.49 should be reason to investigate further.
Liver Ultrasound Preparation guidelines. 1  Do not drink or eat at least 6 hours before the test. 2  On the day before the test, do not eat â fresh fruits and vegetables, fried and oily food, milk, eggs, bread. 3  What you should eat â cooked vegetables, puree, marmalade, honey, roasted bread, soup, and rice.
Re: Suggestions on what to eat before a colonoscopy. You can eat red meat. I wouldn't go OVERBOARD - mostly with the iron rich foods, they are talking about things like liver (yuck) and definately NO iron supplements. Red meat isn't the same as red dye - which is what they want you to avoid.