A procedure that involves entry into the body by incision or insertion of an instrument or ingestion of a foreign substance, such as a drug.

it is a surgical test procedure.

Any operative procedure, major or minor, that traverses body tissues. In the case of fertility-related treatments, a surgical procedure that requires that one or more punctures or incisions be made in the woman's abdomen.

as related to CAD, one in which the interior of the body is "invaded" either by catheters placed in large blood vessels, or by surgical or related procedures, e.g., CABG

A medical procedure that invades (enters) the body, usually by cutting or puncturing the skin or by inserting instruments into the body.

A medical examination that involves entry into the body either by incision or by insertion of an instrument through the skin.

Characterized by a tendency to spread, infiltrate, and intrude, such as a procedure done with a needle, e.g., epidural block, discogram, and EMG.

Medical procedure which involves inserting an instrument into the human body.

A procedure, test or surgery that involves going through the skin or muscle or into a vein or artery , such as a Cardiac Catheterization.