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.
I saw online that some facilities tell folks to eat a low or no carb diet the day before PET scan, in addition to the other things on the list (no exercising 48 hrs before, etc). Previously, my mom has done CT scans, but now she'll go in for a PET this Friday to see if Taxotere is working after 3 rounds.