Which of the following would be used to indicate the administration of drops?

The abbreviation "Gtt" stands for "gutta," which is Latin for "drop." This term is commonly used in medical prescriptions and documentation to indicate the administration of liquid medications in drop form. For example, when a physician prescribes eye drops or ear drops, the dosage may be indicated in gtts, reflecting how many drops should be administered.

In contrast, "IV" refers to intravenous administration, meaning a medication is delivered directly into the bloodstream through a vein. "Im" stands for intramuscular, which means the medication is injected into a muscle. "Inh" refers to inhalation, where medication is administered via the respiratory system, typically through inhalers or nebulizers. Each of these terms corresponds to different routes of medication administration, but "Gtt" specifically denotes drops, making it the correct choice.