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.
CT Scan & CTA. 1  Nothing to eat or drink (except medicines) 4 hours before exam. 2  For a CT of the abdomen or pelvis: You must pick up 2 bottles of oral (barium) contrast and instructions from our office at least one day prior to the exam. 3  For a CTA/angiogram or CT IVP, oral contrast is NOT needed.