Which measuring device should never be used to measure medication?

Using a tablespoon as a measuring device for medication is not appropriate due to several reasons. First, tablespoons can vary in actual volume due to differences in their size and design, leading to inaccuracies in dosing. Unlike more standardized measuring devices like medication cups or oral syringes, a tablespoon does not provide a reliable and consistent measurement, which can result in administering the wrong dosage.

In contrast, medication cups, oral syringes, and oral droppers are specifically designed for measuring liquid medications accurately. Medication cups often have graduated markings that allow for precise measurement, while oral syringes provide the ability to measure small volumes accurately without the risk of spillage. Oral droppers can measure small amounts as well, and they are commonly used for very concentrated medications.

This emphasis on accuracy is crucial in medication administration to ensure patient safety and efficacy of treatment. Thus, using a tablespoon, which lacks the necessary precision and standardization, is not recommended for measuring medications.