What is the correct position for a patient receiving a rectal suppository?

The left side position is the correct position for a patient receiving a rectal suppository because it allows for optimal access to the rectum and encourages easier insertion of the suppository. This position, known as the Sims' position, involves the patient lying on their left side with their right knee bent. This orientation helps to naturally curve the rectum, making the administration of the suppository more comfortable and effective. It also reduces the risk of the suppository being expelled immediately, as gravity aids in keeping it in place.

In contrast, the supine position might not provide the necessary access and comfort for the procedure. The standing position is not practical as it makes insertion cumbersome and increases the chance of the suppository falling out due to gravity. The right side position, while sometimes used for certain examinations, does not facilitate the same ease of access as the left side position does. Therefore, for administering a rectal suppository, the left side position is the most effective and recommended choice.