I've seen this discussion come up plenty of times on different forums. There are often strong objections to the idea that, in my humble opinion, seem a bit excessive in light of my own personal and admittedly anecdotal evidence. So, I figured I would inject some empirical evidence into the debate. Disclaimer: this is just from a quick 10 min search and I am in no way suggesting this comprehensive proof of anything. But it certainly makes the idea of prescribing psychs and NP not such a terrible or harmful concept...at least to me.
The Department of Defense Final Report on the Initial Prescribing Psychologist Program:
http://www.dod.mil/pubs/foi/Personnel_and_Personnel_Readiness/Personnel/966.pdf
From the summary:
2. Medical safety and adverse effects:
While the graduates were for the most part highly
esteemed, valued, and respected, there was essentially unanimous agreement that the graduates
were weaker medically than psychiatrists. While their medical knowledge was variously judged
as on a level between 3rd or 4th year medical students, their psychiatric knowledge was variously
judged as, perhaps, on a level between 2nd or 3rd year psychiatry residents. Nevertheless, all
graduates demonstrated to their clinical supervisors and administrators that they were sensitive
and responsive to medical issues.
Important evidence on this point is that there have been no
adverse effects associated with the practices of these graduates! Thus, they have shown
impressively that they knew their own weaknesses, and that they knew when, where, and how to
consult. The Evaluation Panel agreed that all the graduates were medically safe by this standard.
In a few quarters, the criterion for "medical safety'' was equated with the knowledge and
experience acquired from completing medical school and residency, and, of course, no graduate
of the PDP could meet such a test.
So, basically everything was fine...?
Paper Published in JAMA:
Mundinger MO, Kane RL, Lenz ER, et al.
Primary Care Outcomes in Patients Treated by Nurse Practitioners or Physicians: A Randomized Trial.
JAMA. 2000;283(1):59-68.
http://jama.jamanetwork.com/article.aspx?articleid=192259
Results from Abstract:
No significant differences were found in patients' health status (nurse practitioners vs physicians) at 6 months (P = .92). Physiologic test results for patients with diabetes (P = .82) or asthma (P = .77) were not different. For patients with hypertension, the diastolic value was statistically significantly lower for nurse practitioner patients (82 vs 85 mm Hg; P = .04).
No significant differences were found in health services utilization after either 6 months or 1 year. There were no differences in satisfaction ratings following the initial appointment (P = .88 for overall satisfaction). Satisfaction ratings at 6 months differed for 1 of 4 dimensions measured (provider attributes), with physicians rated higher (4.2 vs 4.1 on a scale where 5 = excellent; P = .05).
Granted, this isn't for psych nurse practitioners, but again, no big deal...right?
Another paper:
Pioro MH, Landefeld CS, Brennan PF, Daly B, Fortinsky RH, Kim U, Rosenthal GE.
Outcomes-based trial of an inpatient nurse practitioner service for general
medical patients.
J Eval Clin Pract. 2001 Feb;7(1):21-33. PubMed PMID: 11240837.
Abstract:
Although teaching hospitals are increasingly using nurse practitioners (NPs) to provide inpatient care, few studies have compared care delivered by NPs and housestaff or the ability of NPs to admit and manage unselected general medical patients. In a Midwest academic teaching hospital 381 patients were randomized to general medical wards staffed either by NPs and a medical director or medical housestaff. Data were obtained from medical records, interviews and hospital databases. Outcomes were compared on both an intention to treat (i.e. wards to which patients were randomized) and actual treatment (i.e. wards to which patients were admitted) basis. At admission, patients assigned randomly to NP-based care (n = 193) and housestaff care (n= 188) were similar with respect to demographics, comorbidity, severity of illness and functional parameters. Outcomes at discharge and at 6 weeks after discharge were similar (P>0.10) in the two groups, including: length of stay; charges; costs; consultations; complications; transfers to intensive care; 30-day mortality; patient assessments of care; and changes in activities of daily living, SF-36 scores and symptom severity. However, after randomization, 90 of 193 patients (47%) assigned to the NP ward were actually admitted to housestaff wards, largely because of attending physicians and NP requests.
None the less, outcomes of patients admitted to NP and housestaff wards were similar (P>0.1).
NP-based care can be implemented successfully in teaching hospitals and, compared to housestaff care, may be associated with similar costs and clinical and functional outcomes. However, there may be important obstacles to increasing the number of patients cared for by NPs, including physician concerns about NPs' capabilities and NPs' limited flexibility in managing varying numbers of patients and accepting off-hours admissions.
I see an NP for one of my medical specialists and she is great. I have worked in a hospital setting as an administrator and all of the NPs were well respected and didn't have any significant difference in patient outcomes.
I don't understand why folks have such an objection to prescribing psychs and NPs when it seems that with the appropriate amount of training, accountability, & supervision, things seems to be OK. I'm not trying to judge those with objections, just trying to understand what evidence there is that this shift is actually harmful to patients.