hypovolemic shock and pulse pressure

in hypovolemic shock, pulse pressure narrows because of a decrease in systolic BP and an increase in diastolic BP hypovolemic shock> decreased preload> decreased cardiac output> decreased systolic BP (i get this part) hypovolemic shock> sympathetic reflex> increased total peripheral resistance> increased diastolic blood pressure (i don't get the bolded part) why does Diastolic BP increase? is it because increased TPR> increased afterload> more blood remains in left... hypovolemic shock and pulse pressure
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums