How is ingesting Nuclear medicine Safe?

Next week I have to have a Thyroid Scan because my blood test showed that the numbers were somewhat high. I have t take nuclear medicine in a pill form and take some x-rays/pictures of the Thyroid.
My question of course is how is having radioactive material in your system safe when you arn’t really allowed [...]

Is it safe to take care of TB patients while pregnant? What about when a patient goes to Nuclear Medicine?

I’m a RN working on a pulmonary/medical surgical floor and I’m getting mixed reactions from co-workers about who I can and can’t take care of. Some of my concerns are nuclear medicine when the patient comes back reactive, TB patients, those with shingles, certain medications, etc?