Final answer:
The catheter tubing should be secured to the client's thigh or lower abdomen to prevent it from being pulled when turning the client, ensuring comfort and proper functioning.
Step-by-step explanation:
To avoid pulling the indwelling urethral catheter when turning a client, the catheter tubing should be secured to the client's thigh or lower abdomen. This procedure helps to minimize discomfort and prevents the catheter from becoming dislodged. Proper securing of the catheter also maintains its placement and function, reduces the risk of infection, and ensures the accurate measurement of urinary output. Care should be taken to secure the tubing with enough slack to allow the client to move without tension on the catheter.