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.
12 hours before your appointment: 1  You will be asked to eat a low carbohydrate diet. 2  Some foods that are NOT allowed include: cereal, pasta, milk, breads and other sugars. 3  If you are scheduled in the late afternoon and can eat breakfast before the scan, it must be a low carbohydrate diet as well.