Cranial Nerve Testing Solved 100% Correct!!
Cranial Nerve Testing Answer - Refers to twelve pairs of nerves that have
their origin in the brain. The majority of cranial cranial nerves contain
both sensory and motor fibers.Since lesions affecting the cranial nerves
produce specific and predictable alterations, it is often prudent to
perform cranial testing as part of a neurological examination.
Cranial Nerve I - Olfactory Answer - The patient is positioned in sitting
with the eyes closed or blindfolded. The therapist places an item with a
familar odor under the patient's nostril and the patient is asked to
identify the odor. A positive test may be indicated by an inability to
identify familiar odors.
Cranial Nerve II - Optic Answer - The patient is positioned in standing a
selected distance from a chart or diagram. The therapist asks the patient
to identify objects or read selected items from the chart or diagram. A
positive test may be indicated by an inability to identify objects as a
reasonable distance.
Cranial Nerve III - Oculomotor Answer - The patient is positioned in sitting
and is asked to follow an object such as a writing utensil with their eyes as
it is moved vertically, horizontally, and diagonally. The therapist should
make sure the patient does not rotate their head during the testing and
should inspect the patient's eyes for asymmetry of ptosis. A positive test
is indicated by an identified tracking deficit, asymmetry, or ptosis.
Cranial Nerve IV - Trochlear Answer - The patient is positioned in sitting
and asked to follow an object such as a writing utensil with their eyes as it
is moved in an inferior direction. The therapist should make sure the
patient does not move his head downward. A positive test results by an
inability to depress and/r complaints of diplopia.
Cranial Nerve V - Trigeminal Answer - The patient is positioned in sitting
and is asked to close their eyes. The therapist uses a piece of cotton and a
safety pin to alternately touch the patient's face. The patient is asked to
classify each contact with the face as sharp or dull. A positive test for the
sensory component bay be identified by impaired or absent sensation or
the inability to differentiate between sharp or dull. The motor component
is tested by asking the patient to perform madibular protrusion, retrusion,
and lateral deviation. A positive test may be indicated by an impaired
ability to move the mandible through the specific motions.
Cranial Nerve VI - Abducens Answer - The patient is positined in sitting.
The therapist asks the patient to abduct their eyes without rotating the
head. A positive test may be indicated by an inability to abduct the eyes.
Cranial Nerve VII - Facial Answer - The patient is positioned in sitting and
is asked to distinguish between sweet and salty substances placed on te
anterior portion of
