Re: what does uptake on a bone scan indicate
Uptake on a bone scan means that area of the bone is more active/growing. The radiopharmacuetical they use is taken up by the bone depending on how it is growing. Some areas of bone will naturally have greater uptake such as shoulder joints. If it is a symetric uptake, both sides of body, it is usually normal. High uptake can be caused by arthritis, bone infection, stress fractures, metastasis from cancer, etc. Depending on a patients history and the location of uptake it gives a pretty good idea of what is going on.