Instructing caregivers on liquid medication dosing

The prescription the question starts from

You prescribe amoxicillin suspension, 480 mg twice daily for 10 days, for a child who weighs 12 kg (26 lb). To decrease the risk of a dosing error with this prescription, you ask your nurse to provide the parents with appropriate education and one further thing.

The four things offered are a written copy of the prescription, a disposable teaspoon, a medication cup, and an oral syringe. The answer is the oral syringe.

So the safety of a liquid medication is treated here as part of the prescription itself. What is given to the parents alongside the education is the measuring tool, and the tool is chosen for them rather than left to the house.

Why the oral syringe, and in which units

Oral syringes are marked with milliliters, not cubic centimeters, so dosages should use milliliters.

That one line carries two orders at once. The tool is the oral syringe, and the units written on the prescription and used with the parent are milliliters. A dose given in cubic centimeters to a parent holding a syringe marked in milliliters does not match, and that is the kind of error the whole item is about.