Exam 3: NR 414 Flashcards
This is a facial bone that articulates a joint instead of a suture
Mandible
This is a blood vessel that runs diagnonally across the sternomastoid muscle
External jugular Vein
This isthmus of the thyroid gland lies just below the
cricoid cartilage
What can be a cause of cluster headaches
alcohol and daytime napping
Shrugging the shoulders is a test of the status of which cranial nerve?
XI
What should the fontanels feel like during examination
firm, slightly concave, and well defined
If the thyroid gland is enlarged bilaterallly what maneuver is appropriate?
listen for a bruit over the thyroid lobes
What are the characteristics of lymph nodes on a normal healthy person?
Mobile, Soft, Nontender
What is cephalhematoma associated with
subperiosteal hemorrhage
What size are normal cervical lymph nodes
smaller than 1 cm
A throbbing, unilateral pain associated with nausea, vomiting and photophobia is a characteristic of:
migrain headache
Lymph node in front of the ear
preauricular
this is superficial to the mastoid process
posterior auricular
at the base of the skull
occipital
This is behind the tip of the mandible
Submental
Halfway between the angle and the tip of the mandible
submandibular
This is under the angle of the mandible
jugulodigastric
This is overlying the sternomastoid muscle
superficial cervical
Deep under the sternomastoid muscle
deep cervical
The is the open space between the eyelids
palpebral fissure
The cornial reflex is mediated by which cranial nerves
V & VII
What retinal structures are viewed through the ophthalmoscope
- optic disc
- retinal vessels
- gen. background
- macula
What is positive consensual light reflex
simultaneous constriction of the other pupil when one eye is exposed to bright light
Aging causes thickening and yellowing of the lens, this is called…
senile cataract
What is considered an eye emergency
SUDDEN onsent of vision change
How is visual acuity assessed?
The Snellen Eye Chart
What is the cover test used for?
to test muscle weakness
How do you use the opthalmoscope
- remove your own glasses and approach the patients left w/ your left eye
The 6 muscles that control eye movement are innervated by which cranial nerves x3
- III
- IV
- VI
A person with normal vision would see your moving finger temporally at
90 degrees
A person is known to be blind in the left eye. What happens to the pupils when the right eye is illuminated by a penlight beam?
both pupils constrict
While using the ophthalmoscope an interruption of the red reflex occurs when?
there is an opacity in the cornea or lens
In documentation of an eye examination what does PERRLA
Pupils
Equal
Round
React
Light
Accomodation
What causes the red reflex
light reflecting from the retina
What is the color of a normal tympanic membrane using an otoscope
pearly gray
What could sensorineural hearing loss related to?
gradual nerve degeneration
Prior to examining the ear, what should be palpated for tenderness
- pinna
- tragus
- mastoid process
For using an otoscope for a younger child, what is the methos
pull the pinna down
During the examination of holding the nose and swallowing what should the eardrum do
flutter
what is darwins tubercle
a congenital painless nodule at the helix
Where are the hearing receptors located
cochlea
The sensation of vertigo is the result of
pathology in the semicircular canals
What is a common cause of conductive hearing loss
impacted cerumen
What findings indicates infection of acute purulent otitis media?
- absent light reflex
- reddened drum
- bulging drum
A person has a yellow tympanic membrane, what could this indicate?
serum in the middle ear
What is one way to reduce risk for acute otitis media
smoking in the house and car
Examining a child’s hearing (6months), what should the examiner watch for
head turning when saying the child’s name
A patient with a head injury has clear watery drainage from the ear, what should the examiner asess for
presence of glucose in the drainage
What is the neocorte
more than halve in the brain, processing visual info
Eye protection
- palpabral fissure
- eye lids
- limbus
- canthus
- caruncle
Sebacous glands help with
tears, or lubrication
2 Types of Conjuctiva
- palpebral- lines the lids
- bulbar- overlays eyeball
Lacrimal Apparatus
helps control irrigation of the eye
Extraocular Muscles, how many?
- 6 of them
- attach to the eye ball
- causes eye ball to move
Why babies eyes don’t move as much
muscles not developed
3 Cranial nerves that control eye
- help w/ extra occular movement
- 1) CN 3: Ocular Motor
- 2) CN 4: Trochlear
- 3) CN 6: Abdusins
3 Concentric coating of the eye
- outer fibrous sclera- cornea (reflex)
- middle vascular choroid- iris, pupil, lens, ant/pos chambers
- inner nervous retina- optic disc, retinal vessels, macula, fovea centralis
What is the pupil controlled by?
Parasympathetic and sympathetic nervous systemt
Fight or flight pupil
dilate
Rest & Digest Pupil
constricts
What is the visual receptor of the inner eye
Retina (controller of light)
Pupillary Light Reflex is
- when pupils are exposed to light
- Direct- light directly in the eye
- Consensual- (indirect, other eye constricts too)
What is fixation in eye exam
the ability to follow and direct vision (follow my finger)
What is accomodation in eye exam
- ability to adapt to near vision
- looking far to looking near
- pupils constrict & converge (eyes are following)
What are some problems with accomodation
- squinting
EOM
extra occular muscle
Big problems with infants vision
- poorly coordinated EOM
- symmetry with eye muscles
- 80% are farsighted improves by 8 yrs
Aging adult eye problems
- presbyopia-
- decreased visual acuity
- decreased night vision
- pupil size decreases
- cataracts
Palpebral fissured cultural competency
- asian
- downsyndrome have smaller fissures
Dark vs light color eyes
- lighter the eyes increased sensitivity to light
Subj Data for eyes
- visual difficulty
- blind spots
- pain
- diplopia, strabismus
- redness
- watery discharge
- history of ocular probs
- glaucoma
- use glasses
- self care
What is strabismus?
cross eyed
Infants Subj Data
- Vaginal infection from the mother
- STIs from mother
- milestone deficits w/ vision
- routine eye exam at school?
- parents aware with safety
- sharp objects
Adult Subj Data Eye
- last test for glaucoma
- history of cataracts
- burning dryness
- decrease in usual activities (reading/sewing)
Obj Data Eyes
- position
- snellen eye chart
- handhel visual screener
- opaque card
- pen light
- applicator stick
- opthalmascope
What is the Snellen Chart, (20/20)
- 20 ft away, what typical person can see from 20 ft away
- Test it with their glasses ON
How do you know they met the requirements of the Snellen Chart
can read more than 50% of the row
How do you test near vision?
- Read a magazine/newspaper
- Jaeger card
- handheld vision screener
- norm is 14/14
What is the confrontation test
- compare persons’s peripheral vision with yours
- Gross meausre of peripheral vision
- make sure you put your finger somewhere you can BOTH see
OD (eye)
dominant (right)
OS (eye)
left sinister
OU
unite- both eyes
How do you inspect Extraocular Muscle Function
- Corneal Light Reflex, “Hischberg”- symmetrical light reflects
- Diagnostic positions test- cardinal directions, go clockwise
- Cover Test- cover one eye with paper, no deviation
What is an eye test used when intoxicated?
diagnostic test,
Nystagmus
eye twitching, when they’re drunk
How do you inspect external ocular structures
- external to inward
- eyebrows
- eyelids and eye lashes
- eyeballs
- conjuctiva and sclera
- lacrimal apparatus
What is Arcus Senilis
- gray white arc around cornea, due to lipid deposits.
- seen in older adults
Anisocoria
unequal pupil size
How do you inspect ocular fundus
- Internal surface of retina
- Use Ophtalmoscope
- Red reflex
Developmental Competency w/ visoscreening tests
- E Chart
- Picture chart, 3-6 yrs
- Color Vision only affects Boys, red/green most common
- Ischihara plates
- must catch EOM before 6 yrs
Aging Adult Competence
- visual acuity
- color vision
- ocular structure may appear sunken
- tear production decrease
- cornea may look cloudy
- pupils can be smaller
Abnormal Findings in the Eye
- Strabismus
- Esotropia (inward turning of eye)
- Exotropia
- Paralysis
- Periorbital Edema
- Exophtalmos, protruding eye
- Enopthalmus
- Ectroption, rolling out
- Entropion, rolling in
What causes Exophtalmos
- bulging eyes
- people with thyroid problems
What is miosis
constricted and fixed pupils
What is mydriasis
dilated and fixed pupils
What is the sensory organ for hearing
ear
External Ear Structure
- Auricle or Pinna
- External Auditory Canal (kids more narrow, adult s curve)
- Tympanic membrane (ear drum)
- separates middle and external
Eustachian tubes
- allows passage of air
- goes into middle air
- helps with pressure
- tympanic membrane could burst
Structure of Middle Ear
- Malleus, incus, stapes
- eustachian tube
Functions of Middle Ear
- Sounds vibrations from out to in
- helps with air pressure
Inner Ear Structure
- Vestibule and semicircul canals
- cochlea
3 levels of Auditory System
- Peripheral- sound waves become electrical impulses
- Brainstem- locates & identifies sound
- cerebral cortex- interprets meaning
What are the 2 pathways of hearing
- Air conduction, used more often
- Bone conduction, vibration of sound, like being under water, ear infection
Anything obstruction transmission of sound impairs hearing
hearing loss
involves a mechanical dysfunction of external or middle ear
conductive
pathology of inner ear, cranial nerve VII or audiotory areas
sensorineural
This is degeneration of auditory nerve
presbycusis
Mixed hearling loss
combination of conductive and senroineural types in same ear
Equilibrium for hearing
vertigo