Final answer:
The most effective technique to minimize the bad taste of a medication, from the provided options, is administering the drug through a straw. Other methods, such as using ice or syringes, do not address the taste directly, whereas the oral route is preferred for home administration of systemic treatments.
Step-by-step explanation:
To minimize the unpleasant taste of a medication, a nurse may use various techniques. However, based on the options provided, the most appropriate technique would be c. administering the drug through a straw. This method can help bypass the majority of the taste buds situated on the front part of the tongue, potentially reducing the sensation of an unpleasant taste.
Other techniques mentioned, such as pouring the drug over ice or using a syringe, may not be as effective in minimizing the taste perception. Moreover, while enlisting the parent's assistance might help in convincing the child to take the medication, it doesn't directly impact the drug's taste.
When considering drug administration at home for a systemic infection, the oral route is generally the most convenient and appropriate option, unless the patient's condition prevents oral intake, in which case a parenteral route could be considered.