In which position does most pressure occur on the coccyx?

The position where most pressure occurs on the coccyx is in the High Fowler's position. This position is characterized by the patient being seated at a 60 to 90-degree angle, which significantly increases pressure on the coccygeal area due to the angle of the body and the surface it rests upon. When patients are in this position, their weight shifts towards the coccyx, making it more susceptible to pressure sores or injury if maintained for prolonged periods.

In contrast, the Supine position keeps the patient lying flat on their back, distributing weight across a broader area, including the back and shoulders. This position does not concentrate pressure specifically on the coccyx. The SIMS position, commonly used for rectal exams and procedures, also redistributes weight away from the coccyx. The Lateral position (side-lying) favors distribution of body weight across the hips and shoulders, further reducing direct pressure on the coccyx. Thus, the High Fowler's position is indeed the one that poses the highest risk for pressure on the coccyx due to its specific body mechanics.