<prompt> Plasma expanders are used inEndotoxic shockNeurogenic shockVasovagal shockAnaphylactic shock  <response>: During endotoxic shock,the amount of blood that can be delivered to the tissues get reduced due to loss of RBCs and decrease in blood volume which causes a decrease in blood pressure. Therefore,plasma expanders are used for the maintanence of blood volume in the body.They act by increasing osmotic pressure. Ref : SRBs manual of surgery 6th edition 