6 - Stomach Pathology Flashcards Preview

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Flashcards in 6 - Stomach Pathology Deck (10):
1

Acid output of gastric fluid collected via NG tube over a 1 hour period on an empty stomach

Basal acid output (BAO)

2

Acid output of gastric fluid collected over 1 hour following administration of pentagastrin

Maximal acid output (MAO)

3

Increased BAO and MAO will occur with ___. Normal/decreased BAO and MAO will occur with ___.

Increased: Duodenal ulcers; ZE syndrome Normal/decreased: Gastric ulcers

4

  • 2-6 weeks old
  • Projectile nonbilious vomiting
  • Visible hyperperistalsis
  • Palpable abdominal mass ("olive mass")

Infantile hypertrophic pyloric stenosis

5

Dx of infantile hypertrophic pyloric stenosis

Abdominal US

6

Tx of infantile hypertrophic pyloric stenosis

Pyloromyotomy

7

4 MCC of gastroparesis

  1. Idiopathic (MCC)
  2. Autonomic neuropathy (DM)
  3. Post-vagotomy
  4. Anticholinergic medications
  5. Systemic sclerosis

8

Direct toxicity and/or mucosal ischemia → mucosal injury → allows gastric acid and other substances (e.g. pepsin) to penetrate into the mucosa → damage to the gastric mucosa with erosion and subsequent hemorrhage

Acute hemorrhagic erosive gastropathy

9

Etiologic agents for acute hemorrhagic erosive gastropathy (5)

  1. Alcohol → direct toxic effect
  2. Cancer chemotherapy → multifactorial
  3. Caustic ingestions → acid/alkali
  4. Iron pills → can cause mucosal necrosis, erosions, and ulcers
  5. Cocaine → vasoconstriction of mesenteric vasculature → subsequent ischemic injury (alpha-receptor stimulation)

10

Ulcers associated with severe physiologic stress. Etiology:

  • Severe trauma
  • Extensive burns
  • Major surgery
  • Intracranial disease (CNS injury causing increased intracranial pressure)

Stress-related mucosal injury