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5 Cards in this Set

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if a P has uremia, why might they have anorexia?
due to the accumulation of nitrogenous wastes in the blood, this could trigger the loss of appetite and lead to N/V.
what are some common causes for nausea?
distention of the duodenum, or upper GI tract, certain smells
where is the vomiting center located?
near the sensory nuclei of the vagus, in the dorsal portion of the reticular formation of the MEDULLA.
major causes of vomiting?
hypoxia (esp when p has decreased cardiac output, shock, brain ischemia etc), inflamm of any abdominal organs, distention/irrigation of the GI tract.
what are the neurotransmitters that are considered the mediators in nausea/vomiting?
dopamine, 5-HT3, opioid receptors (in GI tract and vomiting and chemoreceptor trigger zone)