Final answer:
The right being violated is the right to informed consent. Informed consent requires participants to fully understand the purpose, risks, benefits, and alternatives before agreeing to participate. Coercion in this case undermines autonomy and makes informed consent impossible.
Step-by-step explanation:
The right being violated in this scenario is the right to informed consent.
Informed consent is a foundational principle in research ethics, which requires that participants fully understand the purpose, risks, benefits, and alternatives before voluntarily agreeing to participate in a study.
In this case, the 85-year-old client felt coerced into signing the consent forms due to the doctor's insistence and fear of losing ongoing care. Coercion undermines a person's autonomy and makes informed consent impossible.