![]() ![]() Note the pupil response: The eye with the light shining in it should constrict (note the dilatation size and response size (ex: pupil size goes from 3 to 1 mm) and the other side should constrict as well.Shine the light in from the side in each eye.Dim the lights and have the patient look at a distant object (this dilates the pupils).Watch for any nystagmus (involuntary movements of the eye).Have the patient follow your pen light by moving it 12-14 inches from the patient’s face in the six cardinal fields of gaze (start in the midline).To test cranial nerve III (oculomotor nerve), IV (trochlear), VI (abducens): This means the patient can see at 20 feet what a person with normal vision can see at 30 feet. However, let’s say the patient can only read line 6 with the left eye, which means the patient has 20/30 in this eye. Results: If the patient can read line 8, their vision is 20/20, which means that the patient can see the same line of letters at 20 feet that a person with normal vision can see at 20 feet. ![]() Repeat this with the left eye and then both eyes.Covering the right eye first, have the patient recite the lowest line they can read with ease.First the patient will cover the right eye, then left eye, and lastly read the chart with both eyes.Visual Acuity: use a Snellen chart and have patient wear glasses or contact lenses if they normally wear them Repeat again with the other eye (cover your right eye while the patient covers their left eye).In the top and bottom of the visual field (test it with yours) hold up random numbers with your fingers and have the patient recite them back to you.Have the patient look at your nose (tell the patient NOT to look at your fingers).Cover your left eye, while the patient covers their right eye.To test cranial nerve II….optic nerve: Perform the confrontation visual field test and visual acuity test with a Snellen chart. ….olfactory nerve: Have the patient close their eyes and place something with a pleasant smell under the nose and have them identify it. Cranial Nerve Examination VideoĬranial Nerve Examination for Nurses During the Head-to-Toe Assessment Cranial Nerve I Therefore, you can assess this nerve (cranial nerve II) for any type of abnormalities. The vision problems are from damage to the optic nerve that can lead to nystagmus, blurry vision, double vision etc. Many patients with MS can have speech and vision problems. Why wouldn’t a cranial nerve “work”? In many neurodiseases, the neurons that supply a particular nerve is damaged, which makes the nerve not function properly.įor example, in multiple sclerosis the myelin sheath of the neurons in the central nervous system are damaged, which leads to some sensory and motor problems. Why do we assess cranial nerves? In short, to see if the neuron/nerve works! ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |