During the brachial artery tourniquet test
, an ultrasound probe is placed over the brachial artery, just below the elbow.
Shock and gastrointestinal hemorrhages occurred only in dengue patients, but the tourniquet test
did not help to differentiate chikungunya from dengue (12).
In persons with light skin color, the standard syphygmomanometer cuff tourniquet test
has been widely used to screen children in outpatient settings; a positive test result is an early warning of incipient DHF.
Evidence of bleeding, including petechial rash, positive tourniquet test
result, and gum bleeding, were more common in patients with dengue, although they were also found in some patients with leptospirosis.
Enrolled in this study were children admitted with any of the following clinical signs: HF (fever, headache, or rash, and on physical examination, a positive tourniquet test
, ascites, pleural effusion bleeding, or shock); encephalitis (headache, fever, or neck stiffness, and alteration of consciousness or focal neurologic signs); and hepatitis (lethargy, anorexia, nausea or vomiting, abdominal pain, hepatomegaly, scleral icterus, or jaundice).