Athletic Training & Sports Medicine Center

 

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Cranial Nerve Assessment: V. Trigeminal

Examination type Neurological
Patient & Body Segment Positioning Patient need to be in a comfortable position sitting or standing
Examiner Position The examiner needs to be anterior to (in front of) the patient
Performing the Test

Have the patient close his eyes, and ask him to identify between hard and soft by scraping an object across the face gently (ex. the cotton end v. the wooden end of a cotton tipped applicator). Next have the patient open his eyes and gently move your fingers towards one of the eyes to check for corneal reflex. Next, ask the patient to open his mouth while you resist at the jaw. Ask the patient to grit his teeth.

Tissues Being Tested Cranial nerve V. Trigeminal nerve
Positive Test Inability to discriminate between objects; lack of sensation in face; no or slow corneal reflex; weak jaw motions
Interpretation Intracranial involvement
Common errors in performing exam Not checking corneal reflex
Factors possibly resulting in misinterpretation Make sure that the athlete understands what you are doing when performing the test
Related tests Cranial nerve assessment
References Booher M. James. Athletic Injury Assessment. 4th edition. McGraw Higher Education 2000
Links:

http://www.meddean.luc.edu/lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn5.htm

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