What is a method of administration for ketamine?

The method of administration for ketamine that involves snorting or injecting is correct because ketamine is commonly used in various forms, including as an intravenous (IV) injection or as a nasal spray. These routes allow for rapid onset of effects, which is particularly important in medical settings where ketamine is used for anesthesia or depression treatment.

Snorting is also an alternative method where the powder form of ketamine is ingested through the nasal cavity, leading to quick absorption into the bloodstream. This method, however, is not medically approved and is more associated with recreational misuse.

Other methods listed, such as inhalation, oral consumption, and topical application, are not typical or effective routes for ketamine administration in standard medical practice. While oral consumption can occur, it is less common and the bioavailability is substantially lower compared to injection or nasal routes, making it less effective for achieving desired therapeutic effects.