What position is indicated by placing a pillow against the person's back?

The lateral position is correctly indicated by placing a pillow against the person's back, as this positioning provides support and stability for the individual lying on their side. This pillow serves to help maintain the alignment of the spine and reduce pressure points, contributing to comfort and safety.

In the lateral position, the individual typically lies on one side, which may require additional pillows for optimal support, including behind the back. This is particularly beneficial for residents who may have mobility issues or need assistance to stay in a comfortable position while resting or sleeping.

The other positions mentioned—supine, seated, and prone—do not involve placing a pillow against the back in the same manner. The supine position refers to lying flat on the back without the support of a pillow against the back. The seated position involves an upright posture where no pillow is typically used behind the back. In the prone position, the individual lies on their stomach, which also does not align with the use of a pillow against the back. Thus, the correct positioning indicated by the use of a pillow against the back is the lateral position.