Tourniquet test is used for monitoring patients with?: (A) Infectious mononucleosis, (B) Zika Virus infection, (C) Dengue fever, (D) Chikungunya
Answer is C. 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