Acute application of stochastic resonance (SR), defined as a subsensory level of mechanical noise presented directly to sensory neurons, improves the vibration and tactile perception in diabetic patients with mild to moderate neuropathy. This study examined the effect of 1 hour of continuous SR stimulation on sensory nerve function. Twenty diabetic patients were studied. The effect of stimulation was measured at 2 time points, at the beginning and after 60 minutes of continual SR stimulation. This effect was measured using the vibration perception threshold (VPT) at the big toe under 2 conditions: a null (no SR) condition and active SR, defined as mechanical noise below the subject's own threshold of perception. The measurements under null and active conditions were done randomly and the examiner was blinded regarding the type of condition. Immediately after SR application, the VPT with SR in null condition was similar to baseline (32.2 +/- 13.1, P = nonsignificant) but was significantly lower during active SR (27.4 +/- 11.9) compared with both baseline (P = .018) and off position (P = .045). The 60 minutes VPT with active SR (28.7 +/- 11.1) reached significance comparing the baseline when one outlier was removed from the analysis (P = .031). It may be concluded that SR for a continuous 60-minute period can sustain the VPT improvement in diabetic patients with moderate to severe neuropathy. These results permit the conclusion that there is no short-term adaptation to the stimulation signal. Long-term application of this technique, perhaps in the form of a continually vibrating shoe insert, or insole, may result in sustained improvement of nerve function.

Competencies for nurse practitioner students have been published with the goal of preparing graduates who are ready to meet the challenges of an increasingly complex health care system. Standardized preclinical assessment of graduate-level competencies have been suggested as a means to optimize the student experience in clinical rotations and maximize the preceptor’s time toward preparing students for the transition to independent practice. The main objectives of this study are to describe progressive assessment and competency evaluation as an integral framework for integration of simulation in graduate-level curriculum and present the feasibility and challenges to consider during implementation of Progressive Assessment and Competency Evaluation–directed simulations.

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During the 2018 state legislative session, Virginia's General Assembly approved legislation supporting a transitional licensing model for NPs with at least 5 years of full-time work equivalence in their certification area. This article outlines Virginia's case as an example for NP advocates who are planning scope-of-practice legislation in other states.