The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 27-year-old woman presents to the emergency department with acute onset bloody diarrhea. The patient has had severe abdominal pain throughout her entire life with occasional episodes of bloody diarrhea. She has recently lost 7 pounds and has felt generally ill for the past 2 days. She has a past medical history of generalized seizures with her most recent one having occurred 5 days ago. One month ago, the patient was treated for impetigo. The patient admits to occasional cocaine use and binge drinking. Her temperature is 98.7°F (37.1°C), blood pressure is 107/58 mmHg, pulse is 127/min, respirations are 16/min, and oxygen saturation is 99% on room air. Physical exam is notable for diffuse abdominal tenderness and guaiac positive stools. Laboratory values are ordered as seen below.  Hemoglobin: 9 g/dL Hematocrit: 30% Leukocyte count: 9,400/mm^3 with normal differential Platelet count: 199,000/mm^3  Serum: Na+: 139 mEq/L Cl-: 101 mEq/L K+: 4.9 mEq/L HCO3-: 25 mEq/L BUN: 37 mg/dL Glucose: 99 mg/dL Creatinine: 1.8 mg/dL AST: 62 U/L ALT: 80 U/L Blood alcohol: .15 g/dL  Urine: Color: Yellow Protein: Positive Cocaine: Positive Marijuana: Positive  Which of the following is the best explanation for this patient's laboratory findings?   (A) Alcohol-induced liver injury   (B) Immune response to streptococcal infection   (C) Intestinal IgA deficiency   (D) Protein deposition
['(D) Protein deposition <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Alcohol-induced liver injury \n (B) Immune response to streptococcal infection \n (C) Intestinal IgA deficiency \n (D) Protein deposition <> possible answers', "  A 27-year-old woman presents to the emergency department with acute onset bloody diarrhea. The patient has had severe abdominal pain throughout her entire life with occasional episodes of bloody diarrhea. She has recently lost 7 pounds and has felt generally ill for the past 2 days. She has a past medical history of generalized seizures with her most recent one having occurred 5 days ago. One month ago, the patient was treated for impetigo. The patient admits to occasional cocaine use and binge drinking. Her temperature is 98.7°F (37.1°C), blood pressure is 107/58 mmHg, pulse is 127/min, respirations are 16/min, and oxygen saturation is 99% on room air. Physical exam is notable for diffuse abdominal tenderness and guaiac positive stools. Laboratory values are ordered as seen below.\n\nHemoglobin: 9 g/dL\nHematocrit: 30%\nLeukocyte count: 9,400/mm^3 with normal differential\nPlatelet count: 199,000/mm^3\n\nSerum:\nNa+: 139 mEq/L\nCl-: 101 mEq/L\nK+: 4.9 mEq/L\nHCO3-: 25 mEq/L\nBUN: 37 mg/dL\nGlucose: 99 mg/dL\nCreatinine: 1.8 mg/dL\nAST: 62 U/L\nALT: 80 U/L\nBlood alcohol: .15 g/dL\n\nUrine:\nColor: Yellow\nProtein: Positive\nCocaine: Positive\nMarijuana: Positive\n\nWhich of the following is the best explanation for this patient's laboratory findings? <> context@"]