Which of the following is NOT a method of administering DDAVP for diabetes insipidus?

The correct response identifies intravenous infusion as a method that is not typically used for administering DDAVP (desmopressin) in the treatment of diabetes insipidus.

DDAVP is generally provided in forms that allow for more convenient and effective absorption specifically tailored for this condition. The nasal spray formulation allows for rapid absorption through the nasal mucosa, making it effective for managing the symptoms of diabetes insipidus. When used in tablet form, it is also designed for oral absorption, catering to patients who may prefer taking medications by mouth. Subcutaneous injection is another viable route, as it delivers medication directly into the tissue for absorption.

However, intravenous infusion is not a standard method for DDAVP administration in diabetes insipidus management. Most clinical guidelines recommend other routes due to the drug's pharmacokinetics and the preferences for less invasive administration methods. Thus, choosing intravenous infusion as the answer reflects an understanding of both the medication's intended use and the common practices in patient care regarding diabetes insipidus.