In clinical terms, what does a person with emesis experience?

A person with emesis experiences vomiting. Emesis refers specifically to the act of expelling the contents of the stomach through the mouth. This physiological response can be triggered by a variety of factors including illness, food poisoning, motion sickness, or reactions to medication. Understanding emesis is essential in clinical practice, as it can indicate an underlying condition or the body’s response to certain stimuli, and it helps healthcare professionals assess and manage a patient's health effectively.

Other terms presented in the options relate to different medical conditions. Swelling of tissues refers to edema, while dizziness describes a sensation of feeling faint or unsteady, and fatigue pertains to an overwhelming sense of tiredness or lack of energy. These conditions do not relate to emesis, thereby highlighting the specificity of medical terminology relating to patient symptoms.