Which intervention may enhance adherence to drug therapy in children?

Providing a calibrated spoon for measurement is an effective intervention to enhance adherence to drug therapy in children because it ensures accurate dosing. Children often require precise doses based on their weight or age, and using a calibrated spoon helps parents and caregivers administer the correct amount of medication consistently. This precision can lead to better health outcomes since under-dosing or overdosing can significantly impact a child's response to treatment.

Using a calibrated spoon also instills confidence in caregivers, as they can visually verify the amount of medication being given, reducing the potential for mistakes. It is particularly beneficial for medications that have narrow therapeutic windows, where dosage accuracy is crucial.

The other options do not offer the same level of assurance regarding correct dosing, which is vital for maintaining adherence to the drug therapy regimen. Mixing medication with juice, while it may help in terms of flavor and ease of administration, does not guarantee that the child receives the correct dosage and can sometimes interfere with the medication's effectiveness. Multiple dosing can lead to confusion and increase the likelihood of missed doses, and although selecting a convenient dosage form is important for acceptance, it does not address the accuracy of dosing.