Chapter 53 Sensory Disorder Study Guide

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Pain with movement of auricle, entire side of head aches, erythema, scaling, pruritus, edema, watery discharge, crusting of external ear, drainage (serosanguineous or purulent), dizziness, and decreased hearing, are all signs and symptoms of what?

external otitis

An individual who's max visual acuity of 20/200 with corrective eyewear and/or visual field sight capacity is reduced to 20 degrees is described as what? (normal visual field range is 180 degrees)

legally blind

Over time, what can damage the hair cells?

noise pollution

What is another name for the Organ of Corti?

organ of hearing

Haemophilus influenzae, streptococcus pneumonae, proteus, klebsiella, pseudomonas organisms, allergies, exposure to cigarette smoke, myoplasma, and several viruses, can all contribute to what?

otitis media

What procedure uses an ultrasound to break up and remove the cataract through a small incision?

phacoemulsification

What procedure uses a laser beam to destroy new blood vessels, seal leaking vessels, and help prevent retinal edema?

photocoagulation

Sudden or gradual development of flashes of light, floating spots, hairnets, loss of specific field of vision, and enlarged dark spots with detachment progression are all signs and symptoms of what?

retinal detachment

What is the most common symptom that distinguishes that a patient has Keratitis versus another inflammatory eye disease?

severe eye pain

Why is otitis media more prevalent in children age 6-36 months?

shorter and straighter eustachian tubes

ARMD is characterized by what symptom?

slow, insidious central vision loss

The removal of stapes of the middle ear and insertion of a graft and prosthesis is called what?

stapedectomy

The Weber test is performed by placing what in the center of the patient's forehead or on the maxillary incisors?

the stem of a vibrating fork

What corrects a perforated eardrum, dislocation, or necrosis of the small bone of the middle ear?

tympanoplasty

What is the removal of excess vitreous fluid caused by hemorrhage and replaced with normal saline called?

vitrectomy

What is the fraction term used to describe a person's visual acuity who can read at 20 ft what a normal eye can read at 40 ft?

20/40 vision

What occurs if there is an abrupt angle change of the iris, causing rapid vision loss and dramatic symptoms?

AACG or acute angle closure glaucoma

The eye's ability to focus on objects at various distances by focusing the image of an object on the retina by changing the curvature is called what?

Accommodation

What should person who has a cataract repaired avoid?

Activities that increase IOP e.g. bending, stooping, coughing, lifting

What is the name of the contact list of agencies to assist and educate the visually impaired?

American Foundation for the Blind

What grid assesses for disturbances in the central part of your vision, by asking the patient to view the grid, concentrating on the dot and report areas of distortion?

Amsler vision grid

What nursing interventions should be implemented for a tympanoplasty?

Bed rest, elevate head 40 degrees, operative side facing up.

What are the signs and symptoms of cataracts?

Blurred, hazy, or fuzzy vision; abnormal color perception; difficulty reading; photosensitivity

What should a nurse do when assisting a blind person to walk in an unfamiliar hospital?

Describe surroundings

What disorder affects the retinal blood vessels and is characterized by capillary microaneurysms, hemmorrhage,

Diabetic retinopathy

When does hearing improve from a stapedectomy?

Doesn't improve until edema subsides and packing is removed.

What nursing interventions should be implemented for a stapedectomy?

External ear packing, remain in bed 24 hr, position flat with operative side facing upward.

What is the first priority when someone splashes a chemical in their eye?

Flush eyes

What are the causes of cataracts?

Genetics; acquired by systemic disease, trauma, toxins, intraocular inflammation; age; smoking

A procedure where the corneal flap is folded back and then an excimer laser moves some of the internal layers of the cornea is called what?

LASIK

What position should a patient maintain for 4-5 days postop?

Lay on abdomen or sit forward, rest on nonoperative side.

Keeping the side rail up, assisting with ambulation, providing an environment with minimal stimulation, and positioning, are all precautions for what type of disease?

Meniere's Disease

What should be applied to eye socket postop?

Pressure dressing

If a hearing aid whistles, what intervention should be completed?

Reinsert the ear mold

What are the 4 taste sensations?

Swee

The test that assesses visual acuity by having the patient placed 20 ft away from a chart and asked to read lines is called what?

The Snellen test

What assess auditory acuity and also determines whether defective hearing in an ear is a conductive loss caused by a middle ear problem or a sensorineural loss?

The Weber test

What is the name of the hair cell receptors that respond to sound waves by simulating the cochlear nerve?

The organ of corti

What do miotic eye drops do for a patient with glaucoma?

They constrict pupils

Which two tests both show a lateralization of sound, more to the affect ear, when performed?

Weber and audiometric

The patient is asked to view an Amsler vision grid, concentrating on the dot and report areas of what?

distortion

What is the surgical removal of the eyeball called?

enucleation

Build-up of cerumen, otitis media with effusion, foreign bodies, otosclerosis, and stenosis of the external auditory canal, are all conditions that many cause what?

conductive hearing loss

Sjogren syndrome causes "grittiness" in the eye due to what?

deficit fluid production


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