Final answer:
In treating a systemic infection at home, oral administration is an appropriate and convenient route for administering an antimicrobial.
Step-by-step explanation:
In the procedure of administering medication, the route of administration determines how the medication is given to the patient. In the case of treating a systemic infection at home, an appropriate and convenient route of administration for an antimicrobial would be oral administration. This involves swallowing the medication in the form of a tablet, capsule, or liquid. It is important to follow the prescribed dosage instructions and take the medication with water or food as directed. Oral administration is commonly used for treating infections that do not require immediate and direct delivery to the bloodstream.