All are features of dengue hemorrhagic fever expect:: (A) Thrombocytopenia, (B) Narrow pulse pressure, (C) Hematocrit elevated, (D) Positive torniquet test.
Answer is B. 1. Criteria for diagnosis of dengue hemorrhagic fever (DHF): o Fever - acute, high, continuous for 2-7 days. o Positive tourniquet test o Enlargement of liver o Laboratory evidence o Thrombocytopenia (< 1000,000/mm3) o Haemoconcentration (Haematocrit raised by >20%) Narrow pulse pressure is not seen in DHF