I didn't want to break it down, nor did I want to sound like a jerk - I actually came back to SDN to edit my post because it was harsh, but I'll go ahead and give my spin on it:
I'm just a pre-pod but I think I have a slightly better understanding of the healthcare system than the average pre-med/pod/etc. being that my mom is a nurse and my brother is an EM resident.
Sorry, but this doesn't give you any inside knowledge or a better understand of Healthcare. I have three nurses in my family, know countless people in medical school, I've worked with residents, med students, physicians, in various hospitals, clinics, etc, and I would not claim one bit that this gives one a superior knowledge.
Training is everything. More training, with or without expanded scope, is never dangerous.
Half correct. Training is extremely important, but saying expanded scope without expanded training is acceptable is false. No one currently in DC school would accept or want more training if it didn't lead to more opportunities. More opportunities, in this case, results in a wider scope of practice. The OP and VanBamm are a perfect example of this ... they feel DC schools are becoming more scientific, and because of this, they feel they are now adequately trained to act as primary care physicians. This is false, and dangerous to patients because, as you said, they are not trained and, ergo, not qualified.
Remember...MD/DO may legally have "unlimited scope" but actual practice is limited by training. Your hospital privileges are determined by your training. That is why, in most hospitals, EM physicians do not have privileges outside of the ER. And why an IM physician cannot perform surgery without being arrested. And why an Ortho surgeon cannot practice IM. (that last one is probably possible in rural or strictly private practice, but good luck trying to get admitting privileges at a large hospital). The reason for all this is training. Practitioners are held accountable based on their training. Even if the procedure or practice is within scope...good luck with defending yourself in court without sufficient training.
Yes, practice is limited by training and common sense. However, you do have some misconceptions here ... first, all MD/DOs have an unlimited license to practice medicine and surgery. Medicine is diagnosis, treatment, and script rights, and surgery (in my state for example) is defined as any cutting or burning of the skin. So to say an IM or FM would end up in court and arrested for removing a skin tag, or claiming they aren't qualified to do so is incorrect. Of course they aren't performing Ortho operations because they don't have the malpractice, hospital rights, and are smart enough not to do so.
Also, what do you mean 'privileges' outside the ER? ER residents can moonlight, ER docs can work in urgent care clinics, serve as PCPs in rural areas, do cosmetic stuff, etc.
However, my point in all this, is that there is overlap in fields, and this overlap comes from a lot of standardized training in medical school and residency. DCs don't have any of this, so really there is no overlap and no reason to believe that just because a FM doc can't do an Ortho procedure, a DC could be a PCP.
Furthermore, something that comes along with the basic physician abilities and rights of having the MD/DO (+ internship) is CME classes. Physicians can further their education because they have a base and alter what they do. As long as the malpractice allows for it, docs can do quite a bit. Again, DCs don't have any of these options and cannot.
I can argue that the "unlimited scope" of MD/DO physicians is dangerous. I can't even count how many misinformed pre-med/med students on SDN post about how an MD/DO can do anything, etc. These same pre-med/med students will be physicians some day and think they can do whatever they want...regardless of training or proficiency. And if you want a anecdotal example then here it goes. My mom told me once of a pulmonologist who had a patient that was complaining of having a little difficulty breathing. The pulmonologist decided to intubate. Instead of calling anesthesia, he decided to do it himself. Long story short, he failed and the patient died. The patient was non emergent, he was breathing ok but not well. The patient had some difficulty but it wasn't like he would die if he wasn't intubated. My mom told me that the pulmonologist was not used to doing intubations and, unlike anesthesiologists, he was not doing them daily, weekly, or even monthly.
That doc made a mistake ... pretty plain and simple, and I can see how you would want to use this as a rant against physician scope of practice, but here's my point ... That doc is still trained. Still went through med school, residency, fellowship, etc, and yet did something stupid. There are probably hundreds of pulms out there that intubate all the time and they are fine, this one was rusty and shouldn't have done it. He's still put in the time and made a mistake, imagine allowing DCs who haven't done any of this to do medical procedures! Nightmare.
Remember people...scope of practice is just a bunch of laws. With a large enough lobbying group (nurses come to mind), expansion can be easily achieved. The best way to regulate a profession is to find an appropriate niche and assemble the training/curriculum around that niche. If a profession is not performing in that particular niche...less and less of the public will go to them and the niche will eventually die.
Scope of practice can always be expanded, but there still has to be some basis. Nurses expanded their rights with a solid medical basis and further education (ie NP, DNP, CRNA, etc). However, it's going to be a fight, and there are probably a lot bigger lobbying groups out there to fight against. Don't kid yourself that it will be easy, especially because the DCs (in this thread) don't even want to go about it that way. They want to implement unregulated classes into their curriculum without having to first achieve one degree and augment it with additional training (ie RN -> NP), and expect an expanded scope of practice. This would be horrible. What would the practicing DCs do? Would they sit idly by and watch people with the same degree have more rights and do nothing about it? Would they accept going to more courses to have the same degree they already achieved? When DCs revamp and standardize a curriculum, figure out how additional training for older DCs, figure out malpractice insurance, privileges, etc, then they can worry about expanded practice rights in all 50 states. It's anything but easy.
Furthermore, the problem here is that there is no niche to fill. There is a gap in primary care. So they think they can fill it with no appropriate training whatsoever? Should PhDs and techs fill the gap? I mean, they are trained in sciece-ish things and work in the health care sector? No, they aren't trained. Neither are DCs ... so there goes that niche. A MSK expert who can also act as a PCP? Sorry, but DOs who do OMM/NMM, PM&R docs, Pain management guys exist, so no niche there ... and no script or privilege rights. There simply isn't a gap that DCs with unregulated courses can fill, and it's too late for a total curriculum revamp, push for expansion, etc, to fill those rights.
In my opinion, I think scope of practice laws do little to properly "police" practicioners. It gives them a clear line of what they can and cant do. And everyone knows human nature, tell them they cant do it and they will. They will fight for expanded scope. And when they will practice to the limits of the defined scope regardless of training. That is why you often hear of DC's referring to themselves as PCP's and so gung ho about doing physicals. I have even heard of DC's saying that they can legally give birth! Yes by law they can (depending on the state) and I bet a small percentage will...just because it is within their "scope".
They can give birth? You mean oversee a birth or deliver a baby? Maybe in a home birth, but absolutely not in any hospital in the nation. No way. Listen, you can bash "scope" all you want, vilify doctors as people who think they know it all, but don't, but the point is these things exist for a reason, even if they don't serve an adequate purpose in your opinion. There is a difference between a FP doc pushing the limits of his practice by pulling in a little derm, shooting botox, etc (which is still legal, but possible not properly within a scope, or becomes within a scope because they have the basic knowledge and do the procedures over and over until they are really good), and a chiropractor performing medical diagnosis. The scope of chiro is very clear: 'can't perform medicine or surgery,' the medical license says 'physician and surgeon,' one is legal one is not. Doctors can push ethical boundaries and stretch their interpretation of their license, kill patients, and be sued, but trust me, it won't be like a DC doing the same.