Measurement of the patient's ability to differentiate between sharp and dull sensations over the forehead tests which cranial nerve?
A)Abducens
B)Facial
C)Trigeminal
D)Oculomotor

Question

Quizplus · Accepted Answer

The trigeminal nerve is tested by applying light sensation with a cotton ball to symmetric areas of the face.Sensations should be symmetric;unilateral decrease or loss of sensation may be caused by a CN V lesion.Assess CN III (oculomotor),IV (trochlear),and VI (abducens)by assessing extraocular movement (EOM)functioning.Ask the patient to follow the movement of your finger through the six cardinal positions of gaze;measure pupillary reaction to light reflex and accommodation using a penlight.The facial nerve is tested by having the patient smile,frown,puff out their cheeks,and raise and lower their eyebrows while you look for asymmetry.The oculomotor nerve is tested by assessing directions of gaze and by testing pupillary reaction to light and accommodation.

Measurement of the Patient's Ability to Differentiate Between Sharp and Dull