Which types of flexible endoscopy are most commonly performed?

The correct response identifies gastroscopy, bronchoscopy, and colonoscopy as the most commonly performed types of flexible endoscopy. Each of these procedures plays a crucial role in diagnostic and therapeutic settings.

Gastroscopy, or esophagogastroduodenoscopy (EGD), is frequently performed to visualize and assess the upper gastrointestinal tract, allowing for the diagnosis of conditions such as ulcers, gastritis, and tumors. This procedure helps guide treatment decisions and interventions.

Bronchoscopy is used to examine the airways and lungs. It is essential for diagnosing respiratory conditions, obtaining tissue samples, and assisting in treating obstructive diseases or infections. This flexibility allows healthcare professionals to manage various pulmonary issues effectively.

Colonoscopy is vital for inspecting the colon and rectum, primarily to screen for colorectal cancer and identify inflammatory bowel diseases. The ability to visualize and intervene directly in the colon makes colonoscopy a cornerstone in preventive medicine.

The other options include procedures that are not categorized as flexible endoscopy or are less common in the context of the others. For example, cystoscopy is a procedure for the urinary bladder but does not fit with the gastrointestinal and respiratory focus of the correct answer. Laparoscopic surgery is a surgical technique rather than an endoscopic one, and while