Final answer:
For suction catheterization, the dominant hand should hold the catheter while the non-dominant hand holds the connecting tube. This setup provides better control and helps maintain sterility during the procedure.
Step-by-step explanation:
When performing suction catheterization, it is generally recommended to use the dominant hand to hold the suction catheter and the non-dominant hand to hold the connecting tube. This allows for better control and manipulation of the catheter, as most individuals have greater dexterity and coordination in their dominant hand. Using the dominant hand for the catheter and the non-dominant hand for the tube helps maintain sterility and efficiency during the procedure.