Which important safety rule should a Medication Aide follow when administering morning medications?

The correct answer emphasizes the importance of securing medication carts to prevent unauthorized access, which is crucial for patient safety. Leaving an unattended cart unlocked poses a significant risk as it could lead to potential medication errors, theft, or unapproved individuals obtaining medications. Ensuring that medication carts are locked and attended to not only protects the medications but also maintains compliance with regulations regarding medication safety.

The other choices, while they address aspects of medication administration, do not specifically highlight the immediate safety concern regarding unattended or unsecured medications. Keeping medications out of sight, providing liquids for swallowing, and checking carts for charts are all important practices, but they do not directly address the fundamental safety rule of securing medications in a manner that mitigates risks associated with unauthorized access.