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anticipatory nausea and vomiting

(an-TIH-suh-puh-TOR-ee NAW-zee-uh … VAH-mih-ting)
Nausea and vomiting that may occur before a chemotherapy treatment session begins in a patient who has had chemotherapy before. Anticipatory nausea and vomiting is caused by triggers, such as the sights, smells, or sounds of the treatment room. For example, a patient who smells an alcohol swab when starting chemotherapy may later become nauseous or vomit at the smell of an alcohol swab. The more chemotherapy sessions a patient has, the more likely it is that anticipatory nausea and vomiting will occur. Also called ANV.
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