Final answer:
In the described scenario, a nurse is administering immunizations to a class, which is an example of 'delegation'. A 'Medical Directive' might outline the guidelines that authorize the nurse to perform this task, distinct from an 'order' which is a specific instruction for a patient.
Step-by-step explanation:
The scenario described in the question involves a nurse administering immunizations to a class of primary school students. The correct term for this action is delegation. Delegation in a medical context refers to the process by which a health care provider authorizes another person to perform certain tasks on their behalf. In this case, the nurse has likely been given the authority to administer vaccines through an established protocol or a set of guidelines known as a Medical Directive. This directive would outline the parameters under which the nurse can operate, such as which vaccines to administer, to whom, and under what circumstances. The term order would generally refer to a direct instruction given by a physician or other authorized practitioner specifically for a particular patient or situation. Initiation, on the other hand, would imply starting a new plan of care or medical intervention. It's important for nursing professionals to understand these concepts to carry out their roles effectively and within the scope of their licensing requirements.