National Center for Competency Testing (NCCT) Medical Assistant Practice Test

The procedure used to remove a sample of tissue for examination is called a biopsy. This technique is essential in medical diagnostics as it allows healthcare providers to investigate suspicious lesions or abnormalities. During a biopsy, a small amount of tissue is taken from a specific area, often under local anesthesia, and then sent to a laboratory for microscopic analysis. This can help determine whether a disease, such as cancer, is present or to evaluate other pathological conditions.

Other procedures mentioned, such as incision, exploration, and excision, serve different purposes. Incision refers to the act of cutting into the skin or tissue, often to access the underlying area but not specifically for the purpose of taking a tissue sample. Exploration involves examining a cavity or organ, usually during surgery, to diagnose a condition without providing a specific tissue sample. Excision involves removing an entire mass or a larger section of tissue rather than just a sample, which is also distinct from the primary aim of a biopsy.