You have caught me on a day I am sick unto death of knowitall armchair nurse "administrators" and especially nurses with no field experience who decide to add to the mix. Please don't anyone take this as a universal truth, but you have to know that many, many nurses think EMT's are basically moving men, know-it-all noobs and need to be kept in their place. Sorry, that's how it is in many places, if it is different for you, you have done an excellent job and the nurses are being allowed to work realistically and not prodded into senseless "fannyflage" (backside coverage) by their managers and administrators.
Vitals reveal cardiac signs? Pt anxious, in pain, SOB, or a little too keen to explain some chest pain away as "gas"? If your protocols call for an EKG, do it, but if we do EKG's (start IV's, do ABG's, etc.) on every person who is the equivalent of this patient who vomits and is a diabetic with a half-decade old hx of cardiac stent but has normal vital signs, what kind of professional autonomy/judgement is that? If the nurse bothers you, tell her to take it up with your manager and give that nurse your manager's card.
Some think I have an attitude but you are one bitter nurse. I don't know about your co-workers or if you even work with any other nurses, but there are many, many very good nurses and other professionals out there. This should not be a free for all to bash a profession or provide a negative mindset for those that do not have the opportunity to work with other professionals at any length to form an opinion except for heresay or an occasional rude remark encountered in the ED.
EMS providers do take things rather personally because they do not deal with many other professionals for very long. They see only a snippet of what life is like in the hospital. In 15 minutes that nurse may have been screamed at by 4 doctors, an RRT with an attitude stressed for time and maybe 5 patients. You can also include other departments and RNs as they are trying to get their patients moved through the system. So yes, maybe the nurse does not know your specific protocols in the field, but EMS providers probably do not know the ED staff's protocols either. But just keep adding to the flames that keep EMS isolated from the rest of the world of medicine with inciting the bashing of nurses and other hospital personnel.
In addition to that, the diagnostic suites send potential colonoscopy patients to the ED for further screening when their pre-procedure 12-lead ECG or cardiac monitor shows something suspicious. Even in the Pulmonary Labs which are considered outpatient, abnormal rhythms for which the patient has no history gets sent to the ED. N/V during a test may also get sent to the ED.
BTW, how long before a 3 stent 70 y/o with IDDM needs a CABG? More stents? Which has the longer survivablitiy rate? CABG? Or, 3 or more stents? A stent does not reduce the risk of another cardiac event and one patient can receive many stents as occlusions develop. However, a patient's body may eventually say no more and a CABG or death is the option.
How many women or older patients will present with the cardiac signs you described? Some elderly patients who come to the ED with the "flu" are surprised to learned they have had a heart attack. You might also remember how John Cougar Mellencamp was surprised when he found out he had an MI at 43. His symptoms were also not textbook.