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A 21-year-old female presents to the ED with diarrhea and abdominal cramping that began acutely last night. She recently arrived back in the US after a weekend trip to Jamaica. You suspect that she has “Traveler’s diarrhea” which is most commonly due to:
Which of the following is the most common cause of a positive stool guaiac test?
A 27-year-old man has cholera manifest by severe watery diarrhea. Which of the following is the most likely acid-base state to be noted in the patient?
Two weeks after completing a course of clindamycin therapy a 55-year-old man has watery diarrhea. Which of the following is the most likely diagnosis?
Two weeks after completing a course of clindamycin therapy a 55-year-old man has watery diarrhea. Antibiotic associated diarrhea is diagnosed but does not respond to oral metronidazole. Which of the following is the preferred next step?
Three days after binge drinking of alcohol, a 44-year-old man has the acute onset of epigastric pain that radiates to the back, nausea, and vomiting. Blood pressure 110/76 mm Hg, pulse 122/min/regular. Examination shows epigastric tenderness without rebound. Bowel sounds are generally hypoactive. The patient is not icteric. Which of the following is the most likely diagnosis?
A 50-year-old woman has the acute onset of vomiting induced by chemotherapy. Which of the following is the preferred initial therapy?
Metoclopramide therapy is initiated in a 62-year-old woman who has gastroparesis caused by diabetic autonomic neuropathy. The U.S. Food and Drug Administration has a Black Box warning that this medication may cause which of the following adverse effects?
A newborn infant has meconium ileus. Which of the following is the most likely diagnosis?
A 4-week-old male infant has a 1 week history of postprandial vomiting. Infantile hypertrophic pyloric stenosis is diagnosed. Which of the following medicines was most likely administered to the patient in the first week of his life?
A newborn infant has meconium ileus. Which of the following is the preferred initial test to confirm a diagnosis of Hirschsprung’s disease?
A 33-year–old woman is diagnosed with black hairy tongue. Which of the following is proper management?
Hydrocodone with acetaminophen is prescribed for pain in a 55-year-old woman who sustained an ulnar bone fracture. The patient takes nifedipine for essential hypertension. Which of the following is appropriate counseling during intake of the analgesic?
A newborn infant has meconium ileus. Which of the following is the preferred initial diagnostic test for cystic fibrosis?
A 64 year old male presents with painless jaundice. An increasing serum level of which of the following is most suggestive of the development of pancreatic cancer?
A 20-year-old man who does not drink alcohol has had 4 attacks of acute pancreatitis in the past 7 months. Which of the following is the most likely underlying cause of the pancreatitis?
The overall survival rate for patients with pancreatic carcinoma at 5 years is:
The hepatitis B serologic marker indicating infectivity and active viral replication is:
Which of the following diagnostic options may be most useful in differentiating between the diagnosis of lactose intolerance and irritable bowel syndrome in a patient who presents with gas, bloating, and crampy abdominal pain?
Which of the following is not a prodrome of Hepatitis A?
Which of the following is an epidemiologic characteristic of peptic ulcer disease (PUD)?
Which of the following is recommended in the management of acute hepatitis A?
Which of the following could be a gastrointestinal cause of iron deficiency anemia?
A 50-year-old man presents with complaints of weight loss, arthralgias, diarrhea, and abdominal pain for the past 2 months. Physical examination is significant for low grade fever, generalized lymphadenopathy, and nondeforming arthritis and bilateral pitting edema. A duodenal biopsy demonstrates PAS-positive macrophages that contain non acid fast gram-positive bacilli
and dilation of the lacteals. Which of the following is the most likely diagnosis?
Which of the following is the leading risk factor for developing hepatitis A?
Large outpouchings of mucosa in the colon constitute the condition called:
An ultrasound of the abdomen performed on a 3-year-old child reveals an olive-shaped mass to the right of the navel. Which of the following disorders does this mass indicate?
Helicobacter pylori is the primary cause of which of the following disorders?
A 38-year-old male presents with upset stomach, indigestion, and abdominal pain. You suspect gastritis due to the presence of Helicobacter pylori bacteria. Which of the following diagnostic exams would you perform to confirm the presence of H. pylori?
A newborn baby presents with immediate respiratory distress. Auscultation of the chest reveals bowel sounds in the chest. Chest X-ray reveals loops of bowel in the hemithorax with displacement of the heart. Based on the patient’s presentation, physical examination, and test results, which of the following is the most accurate diagnosis?