This document provides an overview of various gastrointestinal (GI) and genitourinary (GU) tubes used in nursing practice, including gastric tubes, percutaneous endoscopic tubes, nasointestinal tubes, Sengtaken Blakemore tubes, T tubes, and urinary catheters. It discusses evidence-based care for these tubes, such as checking tube placement, caring for drainage, and preventing infection. It also includes sample NCLEX-style questions about tube care.