NURS322 Final Flashcards
3 Causing Factors for Dz in eye
injury
disease
aging
3 Eye Dz’s
Macular Degeneration
Cataracts
Glaucoma
Macular Degeneration
AKA?
Cure?
#1 Cause of…?
Age-related MD
NO CURE
Vision Loss > 60y/o
2 Types Macular Degeneration and Fx
Dry - most common, ■ retinal/capillary arteries r/in ischemic/necrotic macula
Wet - new growth of blood vessels w/ thin walls that leak. OCCURS @ any age
Macular Degeneration Nutritional Risk Factors (2)
↓ Carotene and Vitamin A
MD 3 S/S
↓ Depth perception, distorted, and blurred vision
Interventions for MD?
NONE
Snellen Test HowTo and
Interpretation
Pt stand 20 feet and cover 1 eye
example: 20/50 what pt can see @ 20, a healthy eye can @ 50 ft.
↑ second number, worse vision
MD 2 Diagnostic Tests
Opthalmoscopy and Visual Acuity (Snellen/Rosenbaum)
MD Education (4)
Eat antioxidants, carotene, VitA, B12
Get exams yearly
↓ ADL’s as dz progresses
Get assist services
Foods with… (3 ea)
Carotene
VitA (shares w/ Carotene)
B12
Carrots, sweet potato, dark leafies
Shellfish, liver, fish
Cataracts
▲ in…? and Fx?
3 Key S/S
Opacity of lens of eye r/in impaired vision
Diplopia - double vision
Photosensitivity
Ø red reflex
3 Types of Cataracts
Subscapular - back to front
Nuclear - center out
Cortical - outside (cortex) in
Key Risk Factors Cataracts (4)
UV exposure
Chronic Steroid Use
DM
Trauma
How to Diagnose Cataracts (2)
Looking at it &
Opthalmascope
Surgical removal of Cataracts contraindicated in…? (2)
Infection and bleeding
Cataract pts should report… (4)
Infection (yellow/green drainage)
Hemorrhage
Pain w/ nausea/vomiting
Sudden swelling, light, shapes
Time until vision returns post-cataract op
4 - 6 weeks
What to avoid post-eye op w/ 3 examples
IOP increasing actions (straining, tilting head back in shower, sex)
What is Glaucoma?
Education focuses on…?
S/S (2) Fx…?
IOP Reference Range
Disturbance of optic nerve (Leading cause of blindness)
Education on early detection >40 y/o
↓ drainage ↑ secretion fx IOP
10 - 21 mm/Hg
2 Types of Glaucoma and Fx’s
+Key S/S (3 ea)
Open-angle - most common, angle b2in iris/sclera opens
↓ aqueous outflow which ↑ IOP
↓ Periphery and accommodation (IOP > 21)
Angle-Closure/Closed-Angle - Suuden ↑ IOP b/c same angle closes
SUDDEN ↑ IOP w/ Halos and PAIN
Risk Factors (3) Glaucoma
Age, infx, tumors
Diagnostics (3) Glaucoma
Visual Acuity
Tonometry - IOP
Gonioscopy - drainage
Eye Drops How to (5)
q12h if > 1 drop at a time, wait 10 - 15 min b2in drops Pull down bottom lid, drop Push on punctum Lay for 10 minutes
Glaucoma Surgery
Check IOP?
Contraindication?
Check IOP 1 - 2 hours pre-op
Contraindicated in blindness
Glaucoma med:
Pilocarpine
Route, Type, and Fx (2)
DROP
Miotic
Constricts pupil and ↑ circulation
Glaucoma med:
Diamox
Route (2), Type, and Fx
DROP
Betablocker/Carbonic Anhydrase Inhibtor
↓ IOP by ↓ aqueous humor
PO
Acetazolamide
Pre-OP ↓ IOP pDilating pupils/eye paralysis to stop movement
Glaucoma med:
Mannitol
Route, Type, and Fx
IV
Osmotic Diuretic
in ER to quickly ↓ IOP
Glaucoma med:
Predisolone Acetate
Route, Type, and Fx
DROP
Ocular Steroid
↓ inflammation
What to check if giving Acetazolamides?
Acetazolmaids are sulfa-based meds.
ASK ABOUT SULFA ALLERGIES BEFORE USING.
Middle Ear ▲ are b/c (3) and are caused by (3)
thickening TM
↓ sensory hairs in Organ of Corti
↓ ossicular bone movement
Injury, Dz, Aging
Otitis Media, fx, how to tx (2)
Middle Ear Infx
Inflammation of ossicles
Antibiotics or surgery
Middle Ear 3 Key R/F
Reccurent colds, enlarged adenoids, ▲ air pressure
Otitis Media 3 S/S
▲ TM
Feeling full
Pain in ear
3 Inner Ear Dzs and Fx
Tinnitus - ringing, whirling, dizziness
Labyrinthitis - infx labyrinth (2ndary Otitis Media)
Meniere’s - Tinnitus, Unilateral Sensorineural Hearing Loss, and Vertigo
Inner Ear 2 R/F
Viral/Bacterial Infx
Ototoxic Medications
Inner Ear Dz 4 Key S/S
Tinnitus
Nausea/Vomitting
Nystagmus - involuntary eye movement (regular when looking far though!)
Poor Balance
Ear Diagnostic Procedures (4)
Tympanogram
Otoscopy
Electronystagomography (ENG)
Caloric Testing
Tympanogram measures…?
TM/middle ear structure mobility w/ sound
Otoscopy is used to examine (3)
Procedure for adults vs. children.
Light reflexes R vs L
external canal, TM, and malleus (through TM)
Adults: Up Back
Children: Down Back
Right 5:00, Left 7:00 (towards front basically)
ENG 3 steps
2 pre-op notes (4 no no’s and key device?)
Electrode eyes, stimulate ear with air/water
Ask simple questions
Keep bedrest/NPO until Ø vertigo
FAST pre-op.
No caffeine, alcohol, sedatives, or antihistamines
Ø for pts with pacemaker
Caloric Testing
Diff. temp H2O in pt ear, watch eyes.
Ear care.
Monitor…?
Evaluate…?
Encourage…?
Balance
Home situation
Rising slowly w/ assistive devices
4 Ototoxic medications > 5 days
Antibiotics
Diuretics
NSAIDs
Chemtherapeutic Agents
How to reduce vertigo. Amigo! (5)
↓ stimulation ↓ caffeine/alcohol ↓ Na intake ↑ assistive devices Monitor fluid intake
Eye: Floating spots are a key S/S of…?
Retinal Detachment
Smoking Fx on vertigo?
Ø
Middle Ear Dz on Light Reflex
They’re gone
Ear Med:
Meclizine
Type, Tx for…? Contraindication? Warning?
Antihistamine
Vertigo/inner ear problems
Ø open-angle glaucoma
It sedates
Ear Med:
Droperidol (Inapsine)
Type. Tx for…? 3 Warnings?
Antiemetic
Nausea/Vomiting
HypoTN, tachycardia, ▲ position quickly
Ear Med:
Scopolamine (Transderm Scop)
Type, Tx for…? 3 Warnings?
Anticholinergic
Nausea/Vomiting r/t inner ear dz
URT, sedation, ↑ IOP (care w/ open-angle)
Diuretics fx on Ear
↓ semicircular fluids
Ear Surgical Procedures (3)
Stapedectomy
Choclear Implant
Labyrinthectomy
What is a Stapedectomy?
Target pts, asses for? How is hearing post-op?
remove/replace stapes
Pts with otosclerosis (fused bones) middle ear
Facial nerve dmg
Initially worse
What is a cochlear implant?
Implanted microphone behind ear that converts sound into impulses to auditory nerve
What is a Labyrinthectomy?
Post-Op fx? Expected finding?
Removal of labyrinth
SEVERE nausea/vertigo post-op
Hearing loss is EXPECTED in affected ear
4 MusculoSkeletal Diagnostic Procedures
Arthroscopy
Nuclear Scans (bone, gallium, thallium)
Dual X-Ray Absorptiometry Scans (DX)
Electromyography (EMG)
What is an arthroscopy?
2 Contraindications?
3 Post-Op notes
Physical incision around joint for visualization
Ø with inflammation or pt can’t bend joint 40 degrees
Provide ice
Monitor site
Notify ▲ swelling, pain, infx
SWELLING IS NOT EXPECTED
What is an Electromyography (EMG)? EMG vs. Nerve conduction study? Detects 3 Dzs? Ø if pt is taking (2)? 3 Expectations?
Needling/shocking to detect muscle weakness
Nerve conduction done with pads
Neuromuscular, motor neuron, and peripheral nerve dz
Pt taking anticoagulants/muscle relaxants
Discomfort, flex while needle inserted (ease), bruising @ sites
BONE scans?
Injection time.
Detects…? (3)
GALLIUM/THALLIUM scan r/t BONE SCAN.
Injection Time.
Detects+…? (3)
How long does scan take? May require?
Entire skeletal system
2 - 3 hrs
Fractures, tumors, Bone dz
↑ sensitivity
4 - 6 hrs
Brain, liver, breast dz
30 - 60 minutes, may require sedation.
Assess before Bone scans?
Radioisotope Allergies
Bone scan post-op encourage?
Drinking fluids to excrete radioisotopes
What is Dual X-Ray Absorptiometry (DXA)
WHY DO I LOVE IT?! (3)
Pre-Assess for and remove…?
Estimates density of bone map (hip/spine) and presence of osteoporosis
Non-invasive, Ø contrast, Ø sedation
Metallic objects
Osteoclasts vs. Osteoblasts
Resorption vs. Formation
Bone density age peak range
▲ r/t postmenopause?
18 - 30 y/o
↑ LOSS b/c Ø estrogen
Prevention
2 Foods to eat
Calcium - milk, beans
Vitamin D - fish, egg yolks
Ø carbonated beverages
Sun 5 - 30 min/week
↑ Weight lifting