Final answer:
To secure a patient to the OR table for surgery, one strap should be placed below the armpits across the chest, and another across the thighs or pelvis.
Step-by-step explanation:
To ensure that the patient is adequately secured to the OR table, certain protocols must be followed for patient safety. Typically, one strap is placed across the patient's thorax or chest area, just below the armpits to prevent sliding. The second strap is usually placed across the patient's lower extremities, over the thighs or pelvis, to stabilize the lower half of the body. These restraints help to prevent any movement that could interfere with the surgical procedure or cause injury to the patient.