How do you treat patients with symptoms of acute ischemic stroke who have an allergic reaction to alteplase?

For patients with an allergic reaction (i.e. perioral or lingual edema, difficulty breathing, or other serious reactions), our protocol is to stop tPA (and not resume), discuss with the ED attending whether there is a need for epinephrine 0.3 mg (1:1000 dilution) or intubation, monitor respiratory s...