Final answer:
The urinary catheter should be securely fastened to the client's leg or abdomen at all times to prevent discomfort and reduce the risk of infection. Disconnecting or rinsing the tubing regularly is not recommended as it increases the risk of catheter-related bloodstream infections.
Step-by-step explanation:
The urinary catheter should be managed with care to prevent infections and ensure patient comfort. Option B, which states that the catheter must be fastened to the client's leg or abdomen at all times, is the most accurate. Securing the catheter helps prevent tug and pull on the catheter,
which can cause trauma to the urethra and discomfort to the patient. Catheters should not be routinely disconnected, as disconnection increases the risk of infection. It is essential to maintain a closed drainage system to prevent venous catheter-related bloodstream infections, which can be serious and even fatal. Therefore, option D, regarding disconnecting and rinsing the tubing every shift, is incorrect and contradicts infection control best practices.