I am at a community hospital, as a designated stroke center, that has an ED residency, but no neurology residency/fellows. So, for every possible CVA, we quickly do the NIH scale, get stat labs, get the patient over to CT, and call the neurologist. While the patient is at CT, we go over the case over the phone. The expectation is that the neurologist will be at the bedside within 20 minutes. That way, the CT has been read and dictated, the labs are all back, and a more thorough history has been taken. Then, with the blessing of the neurologist, the ED nurse pushes the tPA and the patient is then wisked away to the ICU to spend the night.
So far, we have not had any problems with regards to getting the neurologist to see the patients. Every so often they will not come the hospital, and give us the go ahead to push the tPA, assuming the patient meets criteria.
Interestingly, Canadian EM group (forget the name) requires a neurologist, radiologist and an ED doc be on board prior to the admin of tPA. SAEM leaves it up to each individual hospital to decide whether they want to give tPA. ACEP leaves it up to the individual EM doc. So, there is no consensus on tPA administration...
You get sued if you gave it and the patient bleeds, you get sued if you withheld the tPA... no win.