In a patient suffering from brain herniation due to a right-sided subdural hematoma, a neurological examination should show left-sided deficits, known as localizing signs, and a decreased level of consciousness. However, false localizing signs may be present, attributed to pressure on Kernohan's notch. A case study demonstrates these false localizing signs, known as Kernohan's notch phenomenon.
Questions or comments about this article may be directed to: Pam Schedler, MS RN CCRN, Sutter Medical Center, Nursing Administration. 2801 L Street, Sacramento, CA 95816. She is a clinical nurse specialist-neuroscience at Sutter General Hospital.
Siobhan Geary, MS RN CNRN, is a clinical nurse specialist-neuroscience at Sutter Medical Center.
© 2002 American Association of Neuroscience Nurses