What does "uptake" mean on a bone scan as in "mildly increased uptake involving the right c6-c7 facet joint?

Bone scan: Uptake means there is simply bone turnover or bone production and degradation in the form of cellular activity. Diagnosis includes fracture arthritis infection tumor anything that dynamically affects bone A bone scan is not an absolute and MUST be correlated with a clinical question plain X-rays and a working differential diagnosis. You must speak to the ordering or treating physician !!!!