Ethical Principles Do Not Support Mandatory Preanesthesia Pregnancy Screening Tests: A Narrative Review

(Anesth Analg. October 6, 2023. doi: 10.1213/ANE.0000000000006669. Online ahead of print) The process of informed consent upholds the principle of patient autonomy, rooted in US constitutional principles of privacy and noninterference. It has been legally required in the United States since 1914, ensuring that individuals have the right to determine what happens to their bodies, as Schloendorff v. New York Society Hospital ruled. The recent US Supreme Court decision on abortion has raised concerns about maternal-fetal conflicts and the rights of pregnant patients to undergo elective anesthesia and surgery. Ethical and legal requirements for informed consent in medical testing vary, with challenges in addressing routine laboratory testing. Not all medical tests carry the same ethical implications, but they should all consider beneficence, nonmaleficence, and patient autonomy. Focusing on the need for preanesthesia pregnancy testing remains a concern in anesthesia and surgery practices. The primary premise is preventing harm to the fetus, but this must be supported by medical evidence and adhere to ethical standards. No study conclusively demonstrates that anesthetic agents significantly increase rates of early human fetal loss or malformations. There is no evidence that anesthetic drugs are generally teratogenic or pose a significant risk of harm to the fetus. While such risks are small, they cannot be guaranteed to be absent.