Property:AnswerDExp
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Dofetilide is a Class III antiarrhythmic used for cardoversion. It prolongs the QT interval and leads to torsades de pointes. +
Prolonged prothrombin time is a sign of anti-coagulation. Pancreatic cancer is, in converse, a pro-thrombotic state. +
Ornithine is an amino acid that plays a major role in the urea cycle. It is not a primary source of fuel for the brain during starvation. +
<font color="red">'''Incorrect.'''</font> Multiple nevi is not a sign of malignancy nor a prognostic factor for melanoma. +
Large congenital melanocytic nevi are a risk factors for the development of melanoma, not squamous cell carcinoma of the skin. +
The colon is characterized by the presence of crypts and goblet cells with the absence of villi. +
GIP increases gastric pH by decreasing acid secretion, increases insulin secretion (and its byproduct C-peptide), and decreases GI motility. +
Mallory-Weiss syndrome is characterized by the longitudinal mucosal lacerations in the gastric cardia. +