Validity assessment and the neurological physical examination

Training needs analysis of Korean nurses' neurological assessment competency

Despite the importance of neurological assessment, there is a lack of research directed at nurses' competency in performing these assessments. We aimed to identify nurses' competency levels in performing neurological assessments and prioritize their related training needs using importance-performance analysis. This survey research was conducted and reported based on the enhancing the quality and transparency of health research (EQUATOR) guidelines. A total of 213 nurses participated in a descriptive, cross-sectional survey study. Exploratory factor analysis identified seven factors that together accounted for 70.34% of the variance: cerebral function, signs and symptoms, pathologic reflexes, motor strength, assessment of an unconscious patient, reporting and documentation, and neurological assessment scales. [Correction added on 10 February 2020, after first online publication: the value of the variance has been corrected from '7.34%' to '70.34%' in the preceding sentence.] There were significant gaps between importance and performance for all seven factors. The importance-performance matrix identified the neurological assessment scales factor as a high priority for continuing education. Emergency department nurses reported lower neurological assessment competency when compared with ward and intensive care unit nurses. The analysis of training needs is beneficial for developing programs to enhance neurological assessment competency. Training in neurological assessment scales is a priority for nurses, and they prefer simulation- and practicum-based methods.

Validity Assessment in Traumatic Brain Injury Impairment and Disability Evaluations

This article provides an overview of validity assessment in persons with traumatic brain injury including evaluation caveats. Specific discussion is provided on post-concussive disorders, malingering, examination techniques to assess for validity, response bias, effort and non-organic/functional presentations. Examinee and examiner biases issues will also be explored. Discussion is also provided regarding judicial trends in limiting examiner scope of testing and/or testimony, and risk of liability when providing expert witness opinions on validity of examinee presentations. The hope is to encourage physiatrists to become more aware and skilled in validity assessment given its importance in differential diagnosis of impairment following traumatic brain injury.

The Honest Palm Sign: Detecting Incomplete Effort on Physical Examination

BACKGROUND

We investigated a simple, novel diagnostic test for detecting incomplete effort during the motor portion of the neurological examination.

METHODS

The results from the honest palm sign (HPS) were evaluated for 162 consecutive neuro-oncology patients who had undergone upper extremity strength testing. Deltoid, bicep, and wrist extensor strength was assessed in all patients. During the examination, patients were repeatedly encouraged to "try as hard as possible" and to "resist with all your strength." The absence of nail prints on the palms constituted a positive HPS test result (i.e., indicative of incomplete effort). The presence of nail prints constituted a negative HPS test result (i.e., indicative of full effort).

RESULTS

A total of 162 patients were tested. Their mean age was 55.5 ± 14.9 years, the median Karnofsky performance scale score was 80 (range, 60-100), and 63 patients (39%) were men. Of the 162 patients, 102 (63%) had malignant gliomas, 28 (17%) had brain metastases, 21 (13%) had other primary brain tumors, and 11 (6.8%) had primary central nervous system lymphomas. Of the 162 patients, 48 (30%) had positive HPS test results. The test sensitivity (84.6%), specificity (75.2%), positive likelihood ratio (3.41), and negative likelihood ratio (0.205) were good. After excluding 33 patients with characteristics that rendered them unsuitable for testing, the results from the remaining 129 patients were analyzed. The sensitivity was unchanged (84.6%), but the specificity (96.6%), positive likelihood ratio (24.5), and negative likelihood ratio (0.16) improved dramatically.

CONCLUSIONS

The HPS test is a simple, sensitive, and very specific test for detecting incomplete effort during the motor portion of neurological evaluations.

The effects of neurologic assessment E-learning in nurses

BACKGROUND

A firm understanding of the preliminary assessment of a patient with neurological disorders is needed for ensuring optimal patient outcomes.

OBJECTIVES

The purpose of this study is to evaluate the effects of using e-learning on neurologic assessment knowledge, ability, and self-confidence among nurses.

DESIGN

This study used a non-equivalent control group pretest-posttest design.

SETTINGS

Nurses working in the neurology and neurosurgery wards, Republic of Korea PARTICIPANTS: A convenience sample of 50 nurses was assigned to either the experimental group (n=24) or the control group (n=26).

METHODS

The experimental group participated in the self-directed e-learning program related to neurologic assessment, and control group underwent self-directed learning with handout. Knowledge, ability, and self-confidence were measured at pretest and posttest.

RESULTS

There were no significant differences in knowledge (U=270, p=0.399) and self-confidence (U=241.5, p=0.171) between the two groups. Nurses in the experimental group showed higher neurologic assessment ability compared with those in the control group (U=199, p=0.028).

CONCLUSIONS

Self-directed neurologic assessment e-learning induced improvement in the neurologic assessment ability among nurses. Self-directed e-learning can be applied for improving competencies in neurologic assessment.

Medicolegal Issues in Traumatic Brain Injury

The role of the physiatrist in provision of medicolegal expert testimony in cases involving traumatic brain injury is challenging and complex. This article provides an overview of how such work should be conducted from a practical perspective including discussion of ethical, legal, medical, and business aspects of such activities. Additionally, pointers are provided with regards to how information including preinjury, injury, and postinjury (including neuroimaging and neuropsychological data) should be considered and integrated into medicolegal opinions and testimony.