Gastroenterology Flashcards
Gray Turner’s sign
Blood tracking along the intercostal space, is indicative of hemorrhage in the retroperitoneal space.
hemorrhagic acute pancreatitis.
Hollow viscus injury.
a spectrum of bowel injury ranging from hematomas to full thickness defects in the walls of the stomach, small, or large intestines.
Meconium ileus
it commonly present in Cystic fibrosis.
Bilious vomiting, distended loops of bowel on radiography, and failure to pass meconium.
Achalasia diagnosis
Barium swallow is often the first diagnostic test ordered in the workup of dysphagia.
EGD: to rule out a stricture (i.e. one caused by cancer), these tests are not sufficient to make the diagnosis.
To make a formal diagnosis of achalasia, esophageal manometry must be performed. Classic findings: increased LES tone, failure of LES relaxation on deglutition, and aperistalsis at the distal esophagus.
Spontaneous Bacterial Peritonitis
The diagnosis is based on presence of ascitic fluid with polymorphonuclear cell count greater than 250 cells/uL or positive Gram stain and culture.
Typical causative organisms include E. coli, Klebsiella, streptococcus, and staphylococcus.
First-line treatment is with cefotaxime, a third-generation cephalosporin with activity against many gram-positive and gram-negative bacteria.
Patient with acute liver failure who has a substantial decrease in her transaminases (AST, ALT) and an increase in her prothrombin time (PT) suggest?
Progression to fulminant hepatitis.
Ranson’s Criteria
Estimates mortality of patients with pancreatitis, based on initial and 48-hour lab values.
WBC >16k
Age >55 years
Glucose >200 mg/dL (>11.1 mmol/L)
Type A gastritis
An autoimmune metaplasic atrophic gastritis that can target the gastric corpus, destroying parietal cells.