Which of the following terms is used to describe a hernia that is restricted or trapped?

The term used to describe a hernia that is restricted or trapped is "Incarcerated." When a hernia is incarcerated, it means that the tissue or organ protruding through the abdominal wall is stuck and cannot be pushed back into its original position. This situation may lead to complications if not addressed, as the blood supply to the trapped tissue can become compromised.

In contrast, while "strangulated" also refers to a serious condition where the blood supply is cut off to the tissue, it specifically indicates that there is an urgent medical issue that requires immediate intervention. An incarcerated hernia can lead to strangulation, but not all incarcerated hernias are necessarily strangulated at the time of assessment.

The term "obstructed" is more general and can pertain to any blockage in the gastrointestinal tract rather than specifically referring to a hernia. "Umbilical" refers to a type of hernia that occurs at the belly button, but it does not address the state of being trapped or restricted.

Therefore, "Incarcerated" is the precise term that describes a hernia that is stuck, making it the correct choice.