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Non-invasive procedure. A medical procedure is defined as non-invasive when no break in the skin is created and there is no contact with the mucosa, or skin break, or internal body cavity beyond a natural or artificial body orifice. For example, deep palpation and percussion are non-invasive but a rectal examination is invasive.
Answers.comÂ® is making the world better one answer at a time. Besides the injection of local anesthesia and vital signs being monitored during vascular injection procedures. The injection of a contrast medium is included in all vascular injection procedures. 4 people found this useful.