#bioetica

• ab absurdo - A Latin phrase meaning 'from the absurd'. It is used in medical logic, bioethics, and forensic expert reports to prove a clinical truth or a cause of death by demonstrating that any alternative hypothesis would lead to an impossible or contradictory conclusion.
• ab abusu ad usum non valet consequentia - A fundamental principle in bioethics, pharmacovigilance, and clinical toxicology stating that 'a conclusion from the abuse of a thing to its use is not valid'. In medicine, it means that the prohibition or condemnation of a useful drug or medical treatment (e.g., opioids for severe pain) is not justified simply because some patients or individuals abuse it.
• Ab antiguo - An old graphical or medical variant for 'ab antiquo', meaning 'from ancient times' or 'since antiquity'. In a medical context, bioethics, and clinical deontology, it is used to refer to treatment principles, ethical rules (such as the Hippocratic Oath), or therapeutic practices that have been established and recognized as valid since ancient times.
• abandonare - The act of abandoning; the deliberate desertion of a vulnerable individual (minor, chronically ill person, elderly person) who is unable to care for themselves. In forensic medicine and bioethics, abandonment constitutes a severe breach of the duty of medical or familial care, legally classified as a form of severe neglect abuse with direct vital implications.
• Abilene - A term used in medical psychology, clinical risk management, and bioethics primarily through the 'Abilene Paradox'; it describes a situation where a medical team or a group of specialists collectively decides on a wrong course of action (e.g., a risky treatment plan), even though individually each member believes it is incorrect, due to the fear of challenging the apparent consensus of the group.