In Natanson v. Kline, what intraoperative error led to a malpractice claim?

• A. A sponge was left inside the abdomen
• B. Anesthesia failure
• C. Wrong procedure performed
• D. Postoperative infection unrelated to surgery

Answer: (A)

The main idea is that negligence can arise from an error that happens during surgery when the team fails to prevent harm. In Natanson v. Kline, the intraoperative error was a sponge left inside the patient’s abdomen after the operation. That kind of retained foreign object is a classic example of breach of the standard of care because the surgical team has a duty to account for all sponges and instruments and to ensure nothing is left behind. The failure to do so directly causes harm and supports a malpractice claim, which is why this option is the best answer. The other scenarios described—anesthesia problems during the procedure, performing the wrong operation, or a postoperative infection unrelated to the surgery—do not capture the specific intraoperative lapse highlighted by Natanson v. Kline.