PE Midterm Flashcards
define vertigo
These sensations point primarily to a problem in the ?????
refers to the perception that the patient or the environment is rotating or spinning
- These sensations point primarily to a problem in the labyrinths of the inner ear,
- peripheral lesions of CN VIII, or lesions in its central pathways or nuclei in the brain.
what question should you ask a patient to clarify vertgo
- Ask: “Do you feel as if the room is spinning or tilting?” (vertigo)
what question should to ask pt to clarify lightheadedness
- “Do your symptoms onset/worsen upon sitting up or standing?” (lightheadedness)
distinguist b/w vertigo and desquilibrium
Vertigo is the sensation of true rotational movement of the patient or the surroundings.
- Disequilibrium, on the other hand, has to do with one feeling unsteady or losing their balance.
A helpful special test utilized clinically in the workup to help differentiate between vertigo of a peripheral versus central cause is the _____ ____.
Note: A helpful special test utilized clinically in the workup to help differentiate between vertigo of a peripheral versus central cause is the DixHalpike maneuver
distinguish b/w primary and secodnary headaches
- Primary headaches include migraine, tension, cluster and chronic daily headaches.
- Secondary headaches arise from underlying structural, systemic, or infectious causes such as meningitis or subarachnoid hemorrhage and may be life-threatening.
distinguish b/w unilateral and tension hedaches
- Unilateral headache occurs in migraine and cluster headaches.
- Tension headaches often arise in the temporal areas; cluster headaches may be retro-orbital.
- Difficulty with close work suggests ______ (farsightedness) or presbyopia aging vision),
whereas worsened vision with distances suggests _____ (nearsightedness
hyperobia
myopia
sudden unilateral painless vision loss think:
consider vitreous hemorrhage from D.M.
trauma
retinal detachment
retinal vein occlusion
central retinal artery occlusion
sudden painful vision loss usually associated w/ cornea and anterior chamber think:
corneal ulcer
uveitis
traumatic hyphema
acute glaucoma
Optic neuritis from multiple sclerosis may also be painful.
Slow central loss occurs in
catract
macular degeneration
peripheral vision loss occurs in
advanced open-angle glaucoma
one-sided loss in hemianopsia and quadrantic defects.
moving specks or stands in visual pathway suggest
- Moving specks or strands suggest vitreous floaters; fixed defects, or scotomas, suggest lesions in the retina or visual pathways.
flashing lughts or new vitrous floaters suggest
- Flashing lights or new vitreous floaters suggest detachment of vitreous from the retina. Prompt eye consultation is indicated.
- Diplopia in one eye, with the other closed, suggests a problem in the _____ or ___.
cornea or lens
- Diplopia is seen in lesions in the ____ or ______, or from weakness or paralysis of one or more extraocular muscles, as in _____ diplopia from palsy of cranial nerve (CN) III or VI, or _____ diplopia from palsy of CN III or IV.
brainstem or cerebellum
horizontal
vertical
horizontal diplopia from palsy of cranial nerve
vertical?
horiz III or VI
vertical III or IV
People with sensorineural hearing loss find being in noisy environments make hearing (worse/better) where in conductive hearing loss noisy environments make hearing (worse/better_
seni - worse
conductive - better
Name medications that affect hearing
- aminoglycosides
- aspirin
- NSAIDs
- quinine
- furosemide.
- Pain occurs in the external canal in otitis externa and, if associated with a ____ _____, in the middle ear in otitis media.
respiratory infection
- Ear pain may also be referred from other structures in the ____, ___ or ___.
- Ear pain may also be referred from other structures in the mouth, throat or neck.
when tinnitus is associated with hearing loss and vertigo it suggests:
Meniere’s disease.
most likely cause of acute hoarseness (2)
- If hoarseness is acute, voice overuse and acute viral laryngitis are the most likely causes.
when examining the eye a crescent shadow is noted nasally.
Dx?
narrow-angle glaucoma
an increased cup to disc ratio is noted in what dz?
glaucoma
name findings associated with angle closure / acute-narrow angle glaucoma
present with conjunctival injection and
fixed, mid-dilated pupil measuring 5-6 mm in diameter.
Due to the elevated intraocular pressure, the eye may feel hard to the touch
The visual acuity is often reduced.
findings associated with open angle glaucoma
peripheral vision loss foloowed by central
visual field testing - automated perimetry
“cupping”
(+/-) increase in IOP
arteries vs veins on fundascopic exam
color
size
light reflex
common retinal findings on fundascopic exam
- Cataract (unable to visualize retina)
- Glaucoma (↑ C/D ratio)
- Papilledema
- Hemorrhage
- Nevi
- HTN (AV nicking, copper/silver wiring)
- Cotton wools spots
- Fatty exudates
- Drusen
- Chorioretinitis
define papiledema
- Loss of venous pulsations
- Hyperemic or pink
- Vessels blurred
- Disk margin blurred
- Non-visible physiological cup
normal intraocular pressure
gold standard?
10-22 mmHg
- Goldman applanation tonometer (gold standard)
how do we assess mobility of TM
- With valsalva (active) - plug nose and blow out
- With pneumatic otoscopy (passive)
how should a normal TM look
- Color & Clarity (peds. note; the screaming infant or small child—with fever)
- Landmarks & light reflex
- Contour
- Perforations
- Presence of fluid
define strabismus
eye does not properly align
what is the Hirschberg test (Corneal light Reflex)
and what is it used to diagnose
light equally aligned in pupils
Useful only for manifest deviations(tropias)
define
hypotopia
hypertropia
exotropia
esotropia
how do we detect and confirm tropias
phorias?
cover test -
- Good eye is covered
- Observe deviated eye for correction
cover/uncover (latent deviation) -
- As eye is uncovered or cross covered, it deviates back to focused position
what do we use “swinging flashlight test” to detect
- Test Relative Afferent Pupillary Defect (RAPD)
-
Marcus Gunn Pupil –
- if one eye has a problem with detecting light (usually from a problem with the retina or optic nerve), there will be less constriction when light is shown on that eye. Sometimes there may be no constriction or even paradoxical dilation in one or both eyes!
- This can be seen in disease of the retina or optic nerve such as in retinal detachment, retinal ischemia or optic neuritis, among other causes.
define ptosis and what CN is effected
- Defined as low lying upper eyelid during primary gaze
- Levator palpebrae muscle & CN III opens the eye
- Do not confuse with lid lag
Lagophthalmos
- Defined as inability to fully close the eyelids
- Orbicularis muscle and CN VII close the eye
- Test muscle strength
- Test cranial nerves III & VII
when inspecting the cornea what condictions may we see (5)
- Arcus senilus (corneal arcus)
- Kayser-Fleischer ring (Cu+ deposition; think Wilson’s disease)
- Corneal abrasion or ulcer (stained versus ‘naked’ eye)
- HSV Keratitis
- Keratoconus (a thinning disorder of the cornea)
when looking at the iris what pathologic conditions may we see (2)
- Coloboma (a defect; hole)
- Iritis - Ciliary flush
define Near Reaction
note the pupillary constriction with gaze shifted to a near object.
*Ref. previous slide…coincident with this near reaction (and pupillary constriction), but not part of it, are
- convergence of the eyes (an EOM) and
- accommodation, an increased convexity of the lens–not visible to the examiner…
- Hence, PERRL not PERRLA
miosis vs mydriasis
mio - excessive constriction
myo - excessive dilation
marcus gunn pupul
o less constriction when light is shown on that eye. Sometimes there may be no constriction or even paradoxical dilation in one or both eyes!
swinging flashlight test
Tonic Pupil (Adie’s Pupil),
- pupil with parasympathetic denervation that constricts poorly to light but reacts better to accommodation (near response
Horner’s syndrime
ptosis, miosis & anhydrosis) “
Argyll Robertson Pupils
small
irregular pupils