Final answer:
A CNA should avoid dragging or pulling patients, keep skin dry and clean, use lifting techniques or assistive devices, and regularly change the patient's position to prevent shearing and friction.
Step-by-step explanation:
To prevent shearing and friction, a Certified Nursing Assistant (CNA) should take several precautions when caring for patients, particularly those with limited mobility. It is important to keep the skin dry and clean, as moisture can increase the risk of skin damage. When moving or repositioning a patient, CNAs should avoid dragging or pulling the patient across the bed or chair, as this can cause shearing. Instead, they should use lifting techniques or assistive devices like draw sheets or transfer boards. This helps in distributing the weight and minimizes skin stress. Additionally, ensuring that the bed is at a proper angle, using supportive devices like pillows to reduce pressure on certain areas, and regularly changing the patient's position are all critical in preventing shearing and friction.