Final answer:
The mandate that all residents must be informed in writing of their rights to refuse medical treatment is identified as the Patient Self-Determination Act (PSDA), not HIPAA or ADA.
Step-by-step explanation:
The mandate that requires all residents must be informed in writing of their rights to refuse medical treatment is known as the Patient Self-Determination Act (PSDA). The PSDA, enacted in 1990, mandates that health care providers must inform patients of their rights under state law to make decisions concerning their medical care, including the right to refuse treatment and the right to create advance directives. While the Health Insurance Portability and Accountability Act (HIPAA) is crucial for maintaining patient confidentiality and privacy, the Americans with Disabilities Act (ADA) provides civil rights protections to individuals with disabilities, neither of these acts specifically addresses the patient's right to refuse medical treatment as the PSDA does.