A nurse is preparing to administer an injection to a patient who requires a small volume of medication for allergy testing. Considering the characteristics of different injection routes, which action should the nurse prioritize to ensure the correct technique for this intradermal injection and accurate results?

Use a transdermal patch to apply the medication over a hairless skin site for continuous absorption.

Deliver the medication intramuscularly at a 90° angle into a large muscle to allow rapid absorption of the medication.

Administer the medication subcutaneously at a 45° angle into the fatty tissue to promote slow absorption.

Inject the medication intradermally at a 10-15° angle and observe for a small bleb formation on the skin.