What therapeutic interventions can flexible endoscopy perform?

Flexible endoscopy is a versatile tool in gastrointestinal diagnostics and therapeutics. It enables various interventions that can directly address certain conditions encountered in the gastrointestinal tract. The correct answer is based on the specific therapeutic procedures that can be performed during an endoscopic examination.

Dilation involves widening a narrowed area of the gastrointestinal tract, which is crucial for conditions such as strictures. This intervention can help alleviate symptoms and improve the passage of food or fluids.

Stenting is the placement of a stent to keep an area of the gastrointestinal tract open, such as in cases of obstruction. This is particularly important for managing conditions like tumors that may cause blockages.

Polypectomy refers to the removal of polyps, which are abnormal growths that can potentially develop into cancer. Removing these during an endoscopic procedure can prevent progression to malignancy and is a critical preventive measure in gastrointestinal health.

In contrast, other interventions listed, such as biopsy, while performed during endoscopy, are primarily for diagnostic purposes rather than therapeutic. Imaging, blood tests, ultrasounds, and physical examinations do not involve therapeutic endoscopy interventions but rather serve other diagnostic or evaluative functions. Therefore, the therapeutic capabilities of flexible endoscopy encompass dilation, stenting, and polypectomy, reflecting its