Final answer:
The most efficient safety reminder device (SRD) that a nurse would use when inserting a feeding tube in an 8-month-old is a jacket device. It wraps around the patient's arms and torso to prevent them from pulling on or removing the tube, ensuring their safety. Option C is correct.
Step-by-step explanation:
When inserting a feeding tube in an 8-month-old, the most efficient safety reminder device (SRD) that a nurse would use is a jacket device.
The jacket device is a type of restraint that wraps around the patient's arms and torso, ensuring that they do not pull on or remove the feeding tube. It helps to keep the patient safe and prevents accidental removal of the tube.