Final answer:
A bolster is placed on the left side of the patient for a C-section to ensure their stability and comfort during the procedure.
Step-by-step explanation:
A bolster is typically placed on the left side of the patient for a C-section. This is done to ensure that the patient is in a stable and comfortable position during the procedure. Placing the bolster on the left side helps to prevent the weight of the uterus from compressing the vena cava, which is a large vein that carries deoxygenated blood back to the heart.