UTA Nurs 5315 Gastrointestinal Review
Questions
Where in the brain is the vomiting center located?
Medulla oblongata
Antiemetic agents, such as domperidone and haloperidol, are antagonists for which receptors?
Dopamine
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What type of vomiting is caused by the direct stimulation of the vomiting center by neurologic
lesions involving the brainstem?
Projectile
Considering the normal frequency of bowel evacuation, how infrequently can evacuation occur
and still be considered within normal range?
Once a week
How many stools per day are considered the upper limits of normal?
Three
The adult intestine processes approximately how many liters of luminal content per day?
9
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A person who has cholera would be expected to have which type of diarrhea?
Secretory
What type of diarrhea is a result of lactase deficiency?
Osmotic
Which statement is FALSE concerning how abdominal pain is produced?
Low concentrations of anaerobes, such as streptococci, lactobacilli, staphylococci,
enterobacteria, and bacteroides, produce abdominal pain.
How can abdominal pain that is visceral in nature best be described?
Abdominal pain that is visceral in nature is diffused, vague, poorly localized, and dull.
Blood loss of 1000 ml or greater will cause:
hypotension, tachycardia and if severe enough may lead to hypovolemic shock.
What is the cause of gastroesophageal reflux disease?
Zone of low pressure of the lower esophageal sphincter.
What term is used to identify frank bleeding of the rectum?
Hematochezia
What is the cause of functional dysphagia?
Neural or muscular disorders.
What is the cause of reflux esophagitis?
Delayed gastric emptying.
By what mechanism does intussusception cause an intestinal obstruction?
Telescoping of part of the intestine into another section of intestine, usually causing
strangulation of the blood supply.
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