Which of the following is a sign of internal bleeding?

Internal bleeding can manifest through a variety of signs and symptoms, and recognizing these can be crucial for prompt medical intervention. Rapid breathing can occur due to the body's attempt to compensate for blood loss by increasing oxygen intake. Discoloration, such as bruising, can indicate bleeding beneath the skin or in deeper tissues. Nausea can be a result of the body reacting to stress, pain, or the effects of blood loss on the circulatory system and organs.

When all of these signs—rapid breathing, discoloration, and nausea—are present, they collectively point to the possibility of internal bleeding. It’s important to assess patients who may exhibit any combination of these symptoms to ensure proper evaluation and treatment. Each indication serves as a potential warning sign that there is a significant issue requiring immediate medical attention.