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The stroke patient is acutely ill within minutes of symptom onset. Typically, he or she is awake and thus requires a focal neurologic exam to evaluate vision, movement, sensation and language. With the advent of acute stroke treatments that need to be rapidly implemented, it is critical that the nurse be able to assess patients and relay the information accurately and efficiently to other members of the health care team. Performing and documenting the awake stroke exam in the most efficient and useful manner is key to the nursing care of the stroke patient. The National Institutes of Health Stroke Scale (NIHSS) is a systematic assessment tool designed to measure the neurologic deficits most often seen with acute stroke patients. Originally designed as a research tool, it is a nonlinear ordinal scale, with possible scores ranging form 0-42. Exam performance has been timed to take 5-8 minutes. Use of the NIHSS includes documentation of neurologic status and outcome, data collection for planning safe nursing care and standardization of information exchanges between nurse caregivers and other health care professionals.
Spilker et al. (1997) studied this question.