After Beth is given the key to the drug locker by Dawn, Beth goes and asks Dr. Edwards what medication he would give to Carol to at least give her a fighting chance to recover. When he finally agrees he tells Beth that giving Carol 5 mg epinephrine IV drip will help lower her pulse and blood pressure. This is totally incorrect, epinephrine is a synthetic form of adrenaline, which acts as a stimulant, so it would make her blood pressure and pulse increase, not decrease. Plus the dose he tells Beth to give Carol would most likely kill her. The average dose of epinephrine used even for the most severe allergic reactions is 0.5 mg, so he told Beth to use a dose that is ten times what is normally used. Also Edwards tells Beth that the epinephrine is to be given as a drip, which means it is supposed to be injected into the IV bag so that it can be administered over time, however Beth injects the epinephrine directly into the IV line which would give her the entire dose at once and would almost certainly send Carol into cardiac arrest.