Final answer:
The nurse should include that a client must sign an informed consent before receiving a placebo in a research trial, which ensures understanding and voluntary participation. Client autonomy allows for refusal of treatment, and minors must have guardian consent for certain treatments.
Step-by-step explanation:
When teaching a class about client rights, the nurse should include the following instruction: a client should sign an informed consent before receiving a placebo during a research trial. Informed consent is a process by which a client voluntarily confirms their willingness to participate in a particular trial, after having been informed of all aspects of the trial that are relevant to their decision to participate. This includes being informed about the research trial, potential risks, and implications of the research, with a clear understanding that participation is voluntary and can be discontinued at any time without any penalty. It is essential to maintain participant autonomy and to protect them from exploitation. Additionally, it is important to recognize that even in the case of life-saving treatments, clients retan the right to refuse treatment, and informed consent is also required from a legal guardian or parent for minors or unemancipated individuals seeking treatment for substance use disorder.