What does res ipsa loquitur mean?

• A. The action speaks for itself
• B. The patient is always at fault
• C. A direct observation is required
• D. Negligence proven beyond doubt

Answer: (A)

Res ipsa loquitur means “the thing speaks for itself.” It’s used when the very occurrence of an injury or complication implies negligence, even if there isn’t direct proof of the exact act that caused it. For this doctrine to apply, the instrumentality or cause of harm must have been under the defendant’s exclusive control, and the harm would not ordinarily occur in the absence of negligence. This allows the plaintiff to rely on circumstantial evidence to establish a prima facie case of negligence, rather than needing a direct observation of the negligent act. It also means you don’t require proving negligence beyond doubt; instead, the surrounding facts make negligence more probable.

The other statements don’t fit because res ipsa loquitur doesn’t place fault on the patient, doesn’t require direct observation, and doesn’t demand proving negligence beyond doubt.