The following are true about chemicals involved in allergic reaction:
a. thromboxane -leukocyte activation
b. prostaglandin-2 - vasodilatation
c. platelet-activating factor - leukocyte activation
d. heparin - augments inactivation of prostaglandins
a. thromboxane -leukocyte activation
b. prostaglandin-2 - vasodilatation
c. platelet-activating factor - leukocyte activation
d. heparin - augments inactivation of prostaglandins