<qa>  What is the vasopressor of first choice followed by vasopressin andAll of you included in the study will be managed by the same group of critical care physician in accordance with pre-existing protocols in both ICUs to ensure that there will not be any major discrepancies among patients in terms of organ support and therapy. Haemodynamic support will be applied to reverse the hypotension and to correct peripheral perfusion abnormalities after optimal resuscitation. IV noradrenaline is the vasopressor of first choice followed by vasopressin and adrenaline. 