Final answer:
Escorts for IV line maintenance are mandated under the IV Line Maintenance Standard when the patient is in custody to ensure safety and security. The need for an escort in other circumstances can vary based on institution policies or specific situations.
Step-by-step explanation:
According to the IV Line Maintenance Standard, escorts are required for IV line maintenance in specific circumstances. The correct answer is c. When the patient is in custody. In general, an escort may not be required at all times during IV line maintenance, but when the patient being treated is in custody, such as in the case of a prisoner or an individual under arrest, an escort is necessary for security reasons. The standard ensures the safety of both the healthcare providers and others in the vicinity. Answer options a, b, and d are not generally required by the standard unless dictated by specific situations or policies of the healthcare institution. Therefore, the escort requirement is highly situational and based primarily on the patient's custody status.