Final answer:
The position to avoid for postpartum patients is being prone with the knees pulled to the chest, as it may cause discomfort. Side-lying and supine with a pillow under the knees are more suitable positions.
Step-by-step explanation:
In terms of postpartum patient care, the position that should generally be avoided is prone with the knees pulled to the chest. When a patient is described as prone, it means they are lying face down. This position is not typically recommended postpartum especially soon after vaginal delivery or a cesarean section due to its potential to cause discomfort and interfere with the healing process. Acceptable positions include left or right side-lying, which can help with blood flow and comfort, and supine with a pillow under the knees, which can relieve pressure on the back.