Important stuff? Flashcards
Where are cold receptors located
EPIdermis
Where are warm receptors located
dermis
Photoreceptors deal with what?
Light
Nociceptors deal with what?
Pain
What does Soma mean?
Body
the cell body of a nerve cell is called what?
Soma
What are the five primary tastes?
Salty Sweet Bitter sour Umami
What CN deal with taste
CN 7, 9
What CN affect eye movement
CN 3, 4, and 6
What are the 2 types of fluid inside the eyeball
Vitreous Humor
Aqueous Humor
What CN is assessed when testing vision?
CN 2
What is Accommodation in regards to the eye?
The ability of the lens to contract or elongate for distance or near vision
What structure of the eye (photoreceptor) is responsible for color
Cones
What part of the eye (photoreceptor) is responsible for shades of gray in dim light
Rods
of these bones what is touching the TM?
Malleus
Incus
Stapes
Malleus
The ears have what two main functions
Balance and hearing
How many bones make up the skull?
7
What nerves innervate the face?
5 and 7
What are the lymph nodes
Preauricular
Postauricular
Occipital
Sub mental
Sub Mandibular
Parotid
Tonsillar
Anterior Cervical chain
Posterior Cervical chain
Supraclavicular
When treating the symptoms of blephritis what would you use?
Baby shampoo
What is the antibiotic for non contact lens wearers
Erythromycin
What is the antibiotic for contact wearers
Ciprofloxacin
Cobblestoning may indicate what
Allergic reaction
Your patient has conjunctivitis with yellowish green discharge and preauricular lymph node swelling. With an HX of not using protection with his/her multiple partners. What would you suspect?
gonococcal conjunctivitis
are there nociceptors in the brain?
No
Heat sensation is felt where ?
Dermis
What receptors are in and around synovial joints
joint kinesthetic receptors
What CN are responsible for taste
7 and 9
What are the layers of the eyeball
Fibrous tunic
vascular tunic
retina
What fluid is found in the anterior chamber of the eye
Aqueous Humor
Vitamin A deficiency would lead to what?
Night blindness
What part of the internal ear:
Is part of the temporal bone and is divided into the cochlea, vestibule, and semicircular canals and contains a fluid called perilymph, which surrounds the membranous labyrinth.
bony labyrinth
What part of the internal ear:
Is a series of sacs and tubes in the same general shape as the bony labyrinth and contains a fluid called endolymph
membranous labyrinth
Nerve impulses from the cochlear branch of the vestibulocochlear nerve (VIII) pass to the midbrain and thalamus and ultimately go to the ______
primary auditory area in the temporal lobe
The equilibrium pathway to the brain includes the vestibular branch axons of the vestibulocochlear (VIII) nerve which, enters the What?
medulla or the cerebellum
The receptor organs for equilibrium are in the internal ear. They are the ______ and ______.
the saccule, utricle
How many lyphatic branches are in the head
10
if you hear bruits on the temoral area what is it?
temporal ateritis
grittiness on the thyroid is what?
Thyroiditis
thyriodoglossal duct cyst can cause what
dysphagia
what are 2 divisions of the conjunctive
bulbar and palpebral
goiter and bulging eyes may indicate what?
Graves diseaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
what cn Controls the lateral rectus muscle
CN VI
What CN controls the medial rectus muscles
CN III
What is if called when the eyes are bulging out
Exophthalmos
What condition is responsible for vision loss greater than 24 hours (most common)
Diabetes
What is loss of half of the field of view on the same side in both eyes?
-Lesion arising in optic nerve radiation on either side of the brain
Homonymous hemianopia
Defective vision or blindness in ½ of the visual field
Hemianopia
Loss of visual fields closest to the temples
a) Usually pituitary tumor
b) Interrupts optic chiasm
Bitemporal hemianopia
What is it called when a drug causes hearing loss
Ototoxic reaction
vertigo and dizzyness from a medication is what
ototoxic
what is the Centor criteria and what is it for
Lack of cough
Fever
Exudates on the tonsils
Lymphadenopathy
STREP
a positive Rhine test is what?
2:1
How do you treat Auricular Hematoma
I&D
What are the instruments of choise for Ear foreign body
loops/scoops, right angle hook, and alligator forceps
What are the instruments of choise for Ear foreign body
loops/scoops, right angle hook, and alligator forceps
Live foreign bodies you should do what
Drown it with lidocaine
administer antibiotics
For cleaning a cerumen impaction what is the biggest risk of using a catheter
TM PERF
For cleaning a cerumen impaction what is the biggest risk of using fluids
Vertigo and nausea
should you medivac mastoiditis?
YES
mastoiditis is a complication of what?
otitis media
Otitis externa is caused by what?
Pseudomonas
otitis externa is also known as what?
Swimmers ear
Treatment for Otitis Externa
Neomycin/Polymyxin B plus hydrocortisone (Cortisporin Otic)
4 drops in affected ear TID-QID
How do you treat Ottitis media
Amoxicillin 1000mg TID x 5-7 days OR
Amoxicillin/Clavulanate (Augementin) 2000mg/125mg PO BID x 5-7 days
PCN allergy
1) Ceftriaxone 1-gram IM one dose OR
2) Doxycycline 100mg PO BID x10 days
pt complains of Fullness or “under water sensation”. what would you suspect?
Eustacian tube disorder
What would you give a pt of they have a pcn allergy
Doxycycline
Septra
Clindamycin
What would you suspect?
-Acute onset of pain and hearing loss; associated vertigo or tinnitus (usually transient, unless injury to inner ear); nausea and vomiting; history of recurrent
ear infections
-Visible perforation of the tympanic membrane; otorrhea (pus, blood, or clear fluid from canal)
TM perf
True/False
For a TM Perf Spontaneous healing occurs in most cases
True
What antibiotics would you give for a TM per if Foreign material is suspected to remain in the canal or in the middle ear
(a) Augmentin 875 mg PO BID x 7 days OR
(b) Doxycycline 100mg PO BID x 7 days
______ is a benign tumor (composed of stratified squamous epithelium) in the middle ear or mastoid.
-normally preceded by repeat infections of otitis media
Cholesteatoma
what is the #1 cause of barotrauma?
Flying
How would you treat barotrauma?
Treat symptoms
-Pseudoephedrine
Cochlea – coiled structure containing the organ of Corti, transmits sound impulses to what CN?
8
What is the convergence of small fragile arteries and veins, located on the anterior-superior portion of the septum
MC source of anterior nosebleed
Kiesselbach’s plexus
MC source of posterior nosebleed
Sphenopalantine artery
what is the first course of action for epistaxis
Direct pressure by compression of the nares continuously for 15 minutes (most cases of anterior epistaxis).
What is used to reduce the risk of toxic shock syndrome developing while the packing remains in place at least 5 days?
Anti-staphylococcal antibiotics Cephalexin (Keflex) 500mg PO four times daily (QID) or Clindamycin 150mg PO q 6 hours for 7 days
What is the most common complication of epistaxis
Vasovagal syncope
WHAT is formed by two rectangular-shaped bones that articulate with the frontal bone, the frontal process of the maxilla, and the perpendicular plate of the ethmoid to form a “tent-like” configuration.
The nasal pyramid
What is an afferent pupillary defect
If the second pupil continues to dilate rather than constrict
What antibiotics would you give for mastoiditis?
(1) Ceftriaxone 2-4gm IV q24h OR
(2) Levofloxacin 750mg IV QD OR
(3) Cefazolin 0.5-1.5g IV TID
True/False
You keep a mastoiditis pt on ship
FALSE
Immediate MEDEVAC
Mastoiditis care After MEDEVAC treatment at MTF
(a) Admission for tympanocentesis, and myringotomy
(b) I&D of periosteal abscess
(c) Mastoidectomy may be indicated
PT has thesse would would you order for them
Lipid panel
What part of the brain controlls smell
Frontal and temporal
When using tangential lighting you are looking for what?
Clarity
What is this
hypopyon
can a hordeolum cause orbital cellulitis?
yes
What would you suspect?
Red eye, pain with eye movement, blurred vision, double vision, eyelid and/or periorbital swelling, nasal congestion/discharge, sinus headache/pressure/congestion, tooth pain, infra- and/or supraorbital pain, or hypesthesia.
Orbital Cellulitis
can you order an MRI for a patient with a forrenbody that has a rust ring?
NO
True/False
You should instruct your Orbit Fx patient to blow their nose
NOOOO
They should not blow their nose
IF you patient does not have a red light reflex what does this mean?
Glaucoma or cataracts
PT has a nearsighted grey cloud what would you suspect
retinal detachment
For a penetrating eye injury you should do wat
Protect the eye, elevate the head 30 degrees
pt has dendritic branches in their eye upon examination what would you suspect?
Herpetic lesion
What antibiotics are used to treat a corneal ulcer
Ciprofloxacin eye drops
Fluoroquinolone eye drops
MIN 5 DAYS
Edu for your pt with barotrauma
aviod more pressure changes
Tx of uvitis/iritis
Can idc do this
Dilation/steroids
No
What do muscle spindles do
they let you know what muscle is being contracted
what is the organism most commonly associated with sialadenitis
What is the treatment
S aureus.
Nafcillin 2gm IV QD
Sudden pain when swallowing out of proportion with exam findings
Treatment
- *EPIGLITITS
- IV antibiotics
- Steroids
Are you at increased risk for retinal detachment if farsighted?
No
Are you at increased risk for retinal detachment if nearsighted?
yes
Subconjunctival hemorage happens where
Bulbar layer
if someone has a black eye and their right eye is stuck looking up independently of the good eye, what muscle would you think has the problem
Ineferior rectus entrapment of damage
What is considered fast pain?
Stabbing/sharp
What is considered fast pain?
Stabbing/sharp
______ is also known as the kinesthetic sense or the perception of body movements.
This also allow us to estimate the weight of objects and determine the muscular effort needed to perform a task
Proprioception
_____ inform which muscle are contracting
Muscles spindles
_____ inform the amount of tension in our tendons.
Tendons organs
_____ inform the position of our joints
while doing work.
Joint kinesthetic
______ in the middle ear monitors the orientation of the head relative to the ground and positioning during movements.
Hairs cells
three types of cells in the olfactory epithelium
olfactory receptor cells,
supporting cells
basal cells
What contains the macula and hair cells and supporting cells
utricle and saccule
fasciculations on the eyelid may indicate what?
Hyperthyroidism
What is anisocoria
inequality of pupillary size
What is a Xanthelasma lesion
irregularly shaped, yellow-tinted lesions suggestive
of abnormality of lipid metabolism
What is a unit of measurement in describing lesion
size and location on the fundus.
Optic disk diameter
usually 1.5 mm
Stensen ducts are related to what glands?
parotid gland
Wharton ducts open are related to what glands?
Sublingual, submandibular
Is a cerumen impaction considered a FOB
No
What is the first tx option for cerumen impaction?
irrigation
What is the seccond option for cerumen impaction if irrigation fails?
Cerumenolytic
do you use alligator clamps on cerumen
No
Most common type of conjunctivitis
Viral
Erythematous or cobblestone appearance in the conjunctiva
allergic or infectious conjunctivitis
What do you always do for an eye issues
Vis acuity test
What do you always do for Corneal abrasion, ulcer or ocular foreign body?
fluorescein stain
What Freq tuning fork is used for rinne test?
512 Hz
Head position during your PE
head tilted or favoring one side
unilateral hearing/vision loss or torticollis
What is the route of tears
- Lacrimal gland produces tears that moisten the eye
- Tears flow over the cornea, drain via the canaliculi to the lacrimal sac and duct, and then into the nasal meatus.
What is a patulous dysfunction of the Eustachian tube
ETD
in which the Eustachian tube is
excessively open
What is Ectropion
lid is turned away from the eye
What is Entropion
lid is turned inward toward the globe
What is pupillary constriction to less than 2 mm.
pupillary constriction to less than 2 mm.
What is pupillary dilation of more than 6 mm and failure of the pupils to constrict with light
Myadriasis
If a patient fell and hit their head. They now are experiencing dizziness and vertigo. What part of the brain is effected?
cerebellum
What is the definitive treatment for peritonsillar abscess
Needle aspiration
NOT I&D
What is a common complication of Nasal trauma
Septal hematoma
If you can’t give IV antibiotics for orbital cellulitis what would you give?
Augmentin
Antibiotic for Sialadenitis
Nafcillin 2gm IV QD
How long should you irrigate the eyes
30 min
Patient Complains of
Fullness or “under water sensation”.
Eustachian tube dysfunction
Mastoiditis definitive care
- I&D of periosteal abscess
- tympanocentesis****
- myringotomy
Differential Diagnosis for Tinnitus
(1) Hyperthyroidism
(2) Otitis Media
(3) Temporomandibular joint dysfunction (TMJ)
Uncomplicated TM perf treatment
Let it heal by itself
Nasal polyps are associated with what conditions
Cystic fibrosis Asthma allergies Aspirin intolerance Alcohol intolerance
Complication of Epiglottitis
Airway obstruction / death