A 40-year-old woman reports 10 days of persistent diarrhea, nausea, and abdominal cramps after returning from an overseas trip. Stool tests confirm the presence of Giardia duodenalis. The clinician discusses treatment options. What is the first-line treatment for giardiasis in most patients?
A 5-year-old child presents with chronic diarrhea, abdominal cramps, and failure to thrive. The child attends daycare, and several other children in the daycare have had similar symptoms recently. You suspect giardiasis and decide to order diagnostic tests. Which of the following is the most specific diagnostic test for giardiasis?
A 30-year-old hiker presents with a 2-week history of foul-smelling, greasy diarrhea, abdominal bloating, and fatigue. He reports drinking untreated water from a mountain stream during a recent hiking trip. Physical examination is unremarkable. The clinician suspects giardiasis and investigates the mode of transmission. Which of the following is the most common mode of transmission for Giardia duodenalis?
Emma, a 7-year-old girl, is brought to the clinic by her parents due to a 3-day history of watery diarrhea, abdominal pain, and low-grade fever. Her parents note that the pain seems to be worse in the lower right side of her abdomen, and she has been lethargic. They mention that Emma drank unpasteurized milk at a family farm outing a week ago. On physical examination, Emma has mild dehydration, and her abdomen is tender in the right lower quadrant, raising concerns about appendicitis. You suspect yersiniosis in this patient. What is the diagnostic test of choice for confirming yersiniosis?
A 20-year-old college student presents with symptoms and signs suggestive of yersiniosis. Stool culture is positive for Yersinia enterocolitica.The patient is treated with supportive care, including hydration and antipyretics. Symptoms resolve within a week.Which of the following symptoms is most characteristic of yersiniosis?
Emma, a 7-year-old girl, is brought to the clinic by her parents due to a 3-day history of watery diarrhea, abdominal pain, and low-grade fever. Her parents note that the pain seems to be worse in the lower right side of her abdomen, and she has been lethargic. They mention that Emma drank unpasteurized milk at a family farm outing a week ago. On physical examination, Emma has mild dehydration, and her abdomen is tender in the right lower quadrant, raising concerns about appendicitis. Stool analysis is performed which confirms the diagnosis. Which of the following is the most common causative agent of yersiniosis?
