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.
What do I eat the day before? My husband has had several PET scans and was never told to be on any special diet. The only thing he had to do was having nothing to eat or drink 6 hours prior to the scan. He was able to have a few sips of water, since his radiation damaged his saliva glands and his mouth was very dry. If you are diabetic you may need to find out if any special prep.