Principles of medical ethics: Autonomy, beneficence, nonmaleficence, and justice

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Revisores de contenido

Rebecca Frontz, DO, MS (Pediatrics),Stefan Stoisavljevic, PhD

Principlism is an approach to bioethics that helps guide ethical decision-making by using the four principles of: autonomy, beneficence, nonmaleficence, and justice. These principles help clinicians think through difficult decisions when patient and family preferences, clinical recommendations, risks, benefits, and limited resources don’t align.

Let’s start with autonomy. Autonomy refers to patients’ right to self-determination, meaning the right to make decisions about their own body, health, and care. Autonomy depends on decision-making capacity. A patient must be able to understand the information presented, appreciate how it applies to their situation, reason through their options, and clearly communicate a choice. Just as important, that decision must be made voluntarily, without coercion, pressure, or manipulation from clinicians, family members, or others.

In practice, it’s important to make sure patients with decision-making capacity have the information needed to make an informed decision. This is where informed consent and informed refusal come in.

Informed consent occurs when a patient chooses a treatment after understanding their diagnosis, the proposed intervention, the risks and benefits, and any reasonable alternatives.

On the flip side, informed refusal means a patient can decline a recommended treatment, or choose no treatment, after understanding the consequences of that decision.

Both of these depend on clear communication. Patients need information that is accurate, complete, and explained in a way they can understand. That’s where truth-telling plays a key role. Clinicians have an ethical obligation to be honest about diagnoses, prognosis, and treatment options.

Confidentiality also supports autonomy. Patients are more likely to share sensitive information when they trust that it will be kept private. This trust allows them to make more informed and meaningful decisions about their care.

Now, autonomy is very important and should be respected in most situations. However, there are also situations where autonomy may be limited. For example, in emergencies when immediate treatment is needed and the patient cannot provide consent; when patients request non-standard interventions; when a patient lacks decision-making capacity; or when a decision poses a serious risk of harm to others.

Here’s a legal connection! Patients have the legal right to accept or refuse medical treatment, as long as they have decision-making capacity. However, clinicians are not legally required to provide treatments that are not medically appropriate or outside the standard of care.

Alright, let’s turn to the principle of beneficence. Beneficence means “to do good” by acting in the best interest of the patient. It focuses on promoting well-being, relieving suffering, preventing harm, and supporting their quality of life.