Utilitarianism is a consequentialist theory that evaluates the morality of an action based on its overall consequences. It holds that the right action is the one that produces the greatest good for the greatest number of people.

The principle of double effect states that it is morally permissible to cause harm as a side effect of an otherwise good action if the harm is unintended and unavoidable, the good achieved outweighs the harm, and the action is not intrinsically evil.

Deontology is a non-consequentialist theory that evaluates the morality of an action based on its adherence to moral rules and principles. It holds that the right action is the one that conforms to these rules, regardless of the consequences.

Moral relativism is the view that there is no one objective standard of morality, and that what is considered right or wrong varies from person to person or culture to culture.

Virtue ethics is a theory that emphasizes the importance of developing and exercising moral virtues, such as courage, honesty, and justice. It holds that the right action is the one that is in accordance with these virtues.

The divine command theory is the view that the morality of an action is determined by whether or not it is in accordance with the will of God. It holds that what is right or wrong is ultimately determined by God's commands.

Existentialism is a theory that emphasizes the importance of individual freedom and choice. It holds that the right action is the one that is in accordance with one's own authentic self, rather than external moral rules or principles.

Natural law theory is the view that there are certain moral principles that are objectively true and binding on all human beings. It holds that these principles are derived from the laws of nature and are discoverable through reason.

The principle of non-maleficence is a fundamental ethical principle in healthcare that requires healthcare professionals to avoid causing harm to patients. It is considered a primary duty that takes precedence over other ethical considerations.

Beneficence is the ethical principle that requires healthcare professionals to act in a way that benefits patients. It involves taking positive steps to promote the patient's well-being and prevent harm.

The principle of respect for autonomy is a fundamental ethical principle in healthcare that requires healthcare professionals to respect the patient's right to make decisions about their own care. It involves providing the patient with information, supporting their decision-making process, and respecting their choices.

Justice is the ethical principle that requires healthcare professionals to treat all patients equally and fairly. It involves distributing resources equitably, respecting patient rights, and avoiding discrimination.

The principle of confidentiality is a fundamental ethical principle in healthcare that requires healthcare professionals to keep patient information private. It involves protecting the patient's privacy, maintaining the confidentiality of their medical records, and only disclosing information with the patient's consent.

Non-maleficence is the ethical principle that requires healthcare professionals to avoid causing harm to patients. It involves taking steps to prevent harm, minimizing risks, and avoiding treatments that are likely to cause more harm than benefit.

The principle of veracity is a fundamental ethical principle in healthcare that requires healthcare professionals to be truthful with patients. It involves providing patients with accurate information about their condition, treatment options, and prognosis, and answering their questions honestly.