Euthanasia and physician-assisted suicide (PAS) present bioethical challenges for social workers due to tensions between client autonomy and risk of harm. Euthanasia is defined as deliberately ending a person's life to relieve suffering, while PAS involves a doctor providing a patient with lethal medication for self-administration. Both respect patient choice but may also involve feelings of burdening others or problems in healthcare systems. Social workers aim to balance self-determination and beneficence by limiting client actions that could seriously harm themselves or others, as per ethical codes. The document discusses debates around these issues.