Why does blood pressure always check in cases of dengue hemorrhagic fever?

thx for ur answer. ill be waiting..Why does blood pressure always check in cases of dengue hemorrhagic fever?
because if the difference between the systolic and distolic (the top and bottom numbers of a BP) are close together (i.e. 20mmHg) then this is a indicator for dengue feverWhy does blood pressure always check in cases of dengue hemorrhagic fever?
in the absence of a definitve test for dengue, one may use the torniquet test which when positive may be presumptive of the diagnosis of dengue in endemic areas. Prior to the conduct of the test, one must determine the blood pressure of the patient because this will serve as the basis for the mean arterial pressure value which is required during the torniquet test.





Also, blood pressure is a vital sign (and so are the cardiac rate, temperature, respiratory rate) which is required not only of patients with dengue but of all patients going into the emergency room. Blood pressure is also required in dengue patients in order to classify the severity of the disease (dengue has 4 stages). Thus, using only the BP, one may readily institute measures necessary to save the life of the patient.
blood pressure is checked in dengue fever to determine the pulse pressure which is the difference betweeen the diastolic and systolic pressure. when this becomes 20 or less, that is not a good sign. during this stage if you check hematocrit levels, hemoconcentration may be noted thus, expect possible bleeding tendencies.