Thankyou for your reply. But you know how it is with Drs. They tell you much to nothing, and like it that way! My Doc is on vacation right now. I was just curious to know what the 10.5 means on the thyrogobulin. No one said what it was before. In fact they don't tell you much of anything. I guess they think the less you know, the less questions you will ask. I guess their time is more valuable than a patients inquisitiveness about their diagnosis. It's only our lives, but it is precious time to them. God, do I sound cynical? Yes, guess I am! That is where the name crabby nancy comes from..haha. Thanks again. I guess I will live...