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Here is a quick mnemonic “NAUSEA VOMITING to remember about Nausea & Vomiting

This can be valuable for patients as well as medical doctors, nurses & students doing their clinical rounds. You can also find it very useful for med exams like USMLE, NExT Medical Step 1&2, MBBS, NEET PG, INI-CET, FMGE,MCAT & NCLEX exams

Nausea & Vomiting : How To Remember Easily ?

  • N – Neurotransmitters: Labyrinthine disorders stimulate vestibular muscarinic M1 and histaminergic H1 receptors.
  • A – Activators of Emesis: Emetic stimuli act at several sites. Emesis evoked by unpleasant thoughts or smells originates in the brain.
  • U – Underlying Mechanisms: Mechanisms underlying nausea are poorly understood but likely involve the cerebral cortex.
  • S – Somatic and Visceral Muscles: Somatic and visceral muscles respond stereotypically during emesis.
  • E – Emesis Coordination: Coordination of emesis involves brainstem nuclei and various pathways.
  • A – Area Postrema: The area postrema, in the medulla, responds to bloodborne stimuli and is termed the chemoreceptor trigger zone.
  • V – Vagal Afferent Stimuli: Vagal afferent stimuli activate 5-HT3 receptors.
  • O – Oral Propagating Spikes: Slow waves are abolished during emesis and replaced by orally propagating spikes.
  • M – Motion Sickness: Motion sickness and inner ear disorders act on labyrinthine pathways.
  • I – Insula and Amygdala: Functional brain imaging studies show activation of cerebral regions, including the insula and amygdala, during nausea.
  • T – Therapies for Vomiting: Therapies for vomiting act on specific receptor-mediated pathways.
  • I – Involvement of CNS: NK1 receptors in the central nervous system mediate both nausea and vomiting.
  • N – Nuclei Coordination: Brainstem nuclei coordinate the initiation of emesis involving various pathways.
  • G – Gastric Irritants: Gastric irritants and cytotoxic agents stimulate gastro-duodenal vagal afferent nerves.


Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER (1), (2)working in health department