Melanie goes to the hospital emergency room hysterical and hurt because she has just been attacked. if the er doctor wants to be sure that melanie will not develop posttraumatic stress disorder as a result of the attack, he could give her which block(s) postsynaptic receptors.

The answer is . propranolol; norepinephrine
Propranolol is a beta blocker that will influence the receiver's blood criculation by affecting the operations in veins and arteries.
Norepinephrine, on the other hand, is functioned in order to regulate the hormonal and neurotransmitter function in our body.