This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'Which of the following is true with Giardia lamblia-a) Malabsorption commonly seenb) Trophozoite forms is binucleatec) Diarrhea is seend) Jejunal wash fluid is diagnostic \nSelect and explain. \nA. a, B. c, C. ac, D. bc', 'role': 'user'}, {'content': "Answer: D \nExplanation: Malabsorption is seen only in few cases, most patients are asymptomatic.\nMost common presentation is diarrhea with abdominal pain, nausea and vomiting.\nTrophozoite is bilateral, symmetrical and all organs of body are paired.\n\n\n2 Axostyles\n4 pairs of flagella\n2 Nuclei\n2 Sucking discs.\n\n\nThe gold - standard for diagnosis of giardiasis is microscopic demonstration of the trophozoite, cyst or both in\xa0faeces.\n\n─ Rajesh Kaiyakarte p. 39.\n\nDuodenal aspirate or jejunal biopsy (not Jejuna' wash fluid) may be required for diagnosis.\n\n─ Harrison p. 1200.\xa0\nRemember\n\nMetronidazole and tinidazole are drug of choice for Giardia lambia.", 'role': 'assistant'}]