You need to be on levothyroxine and monitored closely to make sure you are responding to treatment -- would see an endocrinologist. Hospitalization is not based on any particular number, but on symptoms and is usually not required.
If you are otherwise healthy and young (<60 ? ) then the dose is usually 0.7 x body weight (assuming you are not significantly over or under weight). For example, a 200 pound person would have a calculated dose of 140mcg (137mcg tablet is available).
thats the med he put me on... im glad to know that i dont need to be hospitalized. i have a 6 month old and that would just kinda kill me to be away from her.
thank you