Final answer:
The most appropriate method to secure the gastrostomy tube would be the Taping method.
Step-by-step explanation:
When securing a gastrostomy tube in a patient, it is important to choose a method that minimizes movement and irritation to prevent skin breakdown and irritation at the insertion site. The most appropriate method to secure the gastrostomy tube would be the Taping method. This method involves using medical tape to hold the tube in place while ensuring it is not too tight to cause discomfort or too loose to allow movement.