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NURS 251 Exam 2 Review Questions And All Correct Answers. $9.99   Add to cart

Exam (elaborations)

NURS 251 Exam 2 Review Questions And All Correct Answers.

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  • Nurs 251
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  • Nurs 251

CN 1 - Answer Olfactory CN2 - Answer Optic CN3 - Answer Oculomotor CN4 - Answer Trochlear CN5 - Answer Trigeminal CN6 - Answer Abducens CN7 - Answer Facial CN8 - Answer Acoustic CN9 - Answer Glossopharyngeal CN10 - Answer Vagus CN11 - Answ...

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  • August 19, 2024
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NURS 251 Exam 2 Review Questions
And All Correct Answers.
CN 1 - Answer Olfactory



CN2 - Answer Optic



CN3 - Answer Oculomotor



CN4 - Answer Trochlear



CN5 - Answer Trigeminal



CN6 - Answer Abducens



CN7 - Answer Facial



CN8 - Answer Acoustic



CN9 - Answer Glossopharyngeal



CN10 - Answer Vagus



CN11 - Answer Spinal Accessory



CN12 - Answer Hypoglossal



Name the 3 sensory CNs

,OOA - Answer -Olfactory

-Optic

-Acoustic



Name the 5 motor CNs

OTASH - Answer -Oculomotor

-Trochlear

-Abducens

-Spinal Accessory

-Hypoglossal



Name the 4 mixed CNs

TFGV - Answer -Trigeminal

-Facial

-Glossopharyngeal

-Vagus



Which CNs come off of the midbrain? - Answer -olfactory

-oculomotor

-optic

-trochlear



Which CNs come off of the pons - Answer -trigeminal

-abducens

-facial

-acoustic



Which CNs come off of the medulla - Answer -glossopharyngeal

-vagus

,-spinal accessory

-hypoglossal



Name the CNs that can be clumped together to check - Answer -3,4,6 (oculomotor, trochlear,
abducens)

-5,7 (Trigeminal, facial)

-9,10,12 (glossopharyngeal, vagus, hypoglossal)



How would you test the olfactory CN 1 - Answer Give pt a sample of something to smell (something
common) and ask them what they believe it is.



This nerve smells impulses from nasal mucous membrane and sends the sense to the brain - Answer
olfactory



this cranial nerve sends visual impulses from eye to brain - Answer optic



What tests can you use to test CN2, optic - Answer -visual acuity (Snellen)

-Visual Fields (check optic discs)



Explain the Snellen test and what does it test for - Answer - the snellen test checks teh optic nerve

- you must have teh pt stand back 20 ft away and ask them to read the lowest line they can and see how
far they cam read it to.



What does it mean when a pt has a 20/40 vision - Answer he can see at 20ft what people can see at
40ft



this cranial nerve controls eye muscle contraction, eye movement, constricts pupils, and elevates eyelids
- Answer the oculomotor nerve



How can you test oculomotor, trochlear, and abducens and explain the test

6EEP - Answer -the six cardinal fields of gaze

, -Extraocular eye movement (can the eye get there)

-Eye muscle movement (lazy eye)

-Pupillary response



What is a lazy eye and when is it checked - Answer its checked when checking for CNs 3,4,6

-it occurs when the muscles surrounding the eyes are too strong, you can be born with it or it can be
because of stress on the eyes from reading and such.



Explain when checking CN 3,4,6 what pupillary responses you're checkign for - Answer -consensual
responses

-accomodation



what happens when checkign CN3,4,6, for pupillary accomodation - Answer close items will constrict
the pupils

items at a distance will dilate the pupils



What happens when checking CN 3,4,6 for pupillary consensual reaction - Answer you shine light in the
left pupil to constrict it and then the automatic response is for the right pupil to constrict as well.



When checking the CN 3,4,6 how are you supposed to describe your pt's results - Answer PERLA



What is PERLA - Answer A way to size up the pupils and look at a shape

it stands for

Pupils equal round react to light accomodation.



this cranial nerve controls contracts eye muscle and eye movement - Answer trochlear



this cranial nerve controls lateral eye movement - Answer abducens

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