This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: viral infection, Subject name: Medicine
[{'content': 'Tourniquet test is used for monitoring patients with? \nSelect and explain. \nA. Infectious mononucleosis, B. Zika Virus infection, C. Dengue fever, D. Chikungunya', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The tourniquet test is a pa of WHO case definition for dengue. It is a market for capillary fragility Procedure of Tourniquet test 1) Take the BP, example 120/80 2) Inflate cuff to midway between SBP and DBP (120+80/2)=100mm Hg and maintain for 5 minutes. 3) Reduce the cuff pressure and wait for 2 minutes 4) Count the petechiae below antecubital fossa. A positive test is >10 or more petechiae per square inch', 'role': 'assistant'}]