Adult Care Exam 3 Flashcards
What occurs to the lens of the eyes when a patient develops cataracts?
lens become dense through loss of water, causing an increase in the opacity of the lens (cloudiness), blocking rays of light from entering the eye
What are some risk factors for cataracts?
UV Light Exposure
Glaucoma/ Genetics
Age (most common)
Trauma
Health conditions (Diabetes, HTN, hyperlipedemia)
Exposure (corticosteroids, alcohol, smoking)
Retinal Detachment
” U GATHER!”
Are cataracts natural and normal?
Yes, they are a normal part of aging
What are some vision changes with cataracts?
Cloudy/blurry/double vision
Around lights there are halos
Toned down colors
Sensitivity to glare and light (difficulty seeing at night)
CATS
visual sensory perception is reduced
What is NOT associated with aging cataracts? What are the first signs?
Pain or eye redness. First signs include slight blurred vision and decreased color perception
What do vision changes of cataracts lead to?
blindness
What are some measures to prevent cataracts?
Wearing hats and sunglasses (with UVA & UVB protective coating) when in the sun.
Smoking cessation
Eat a low-fat diet rich in antioxidants and vit. E & C
Avoid ocular injury (wear goggles when using power tools)
Pre op Teaching for cataracts include…
Assess how vision affects ADL’s
Phenylephrine (to dilate pupils)
Bromfenac (NSAID eyedrop for pain relief)
Valium to decrease nerves
Informend consent for the procedure
Are they on blood thinners or Tamulosin?
Clip eyelashes
Measures to decrease increased IOP
NPO
Void before procedure
You look through your patients chart and notice they are taking Heparin, Asprin, and Tamulosin. What should you do?
Notify the provider. Taking blood thinners can cause hemorrhage during the procedure. Taking Tamulosin when undergoing eye surgery can prevent the pupil from dilating properly, causing floppy eye syndrome.
What must all patients have in regards to cataract surgery?
some type of replacement lens: intraocular implanted lens, contact lens, eyeglasses
What are some post op nursing intevertions for cataract surgery?
Raise HOB
Avoid laying on affected side (lay on the other side or on back)
Monitor for N/V –> d/t increase IOP
Prednisone to reduce inflammation (corticosteroid)
Ciprofloxacin and Mozifloxacin (ABX)
Pilocarpine to constrict the pupil
Minimal light –> wear UVA sunglasses
Avoid straining/ sneezing/ coughing
Educate on when and how to admin eyedrops
Educate to not drive/ operate heavy machiner
Wear an eye shield at night for 2-3 weeks
What is normal post op for cataract surgery? What is abnormal?
some redness, irritation and blurriness is normal
pus/ swelling, pain, decrease in vision, floaters, excessive redness is abnormal
What are the different types of cataract surgery?
intracapsular- removal of the lens and its capsule through wide incision in cornea
extracapsular- Contents of lens aspirated by large-bore needle thru small incision in cornea, leaving posterior portion of lens capsule behind. IOL placed there
The patient is taking prednisone and they report of pressure in the eye and you notice edema. What should you do as the nurse?
alert the provider
The patient is displaying s/s including pain early after surgery, pain with nausea and vomiting, are these expected findings?
No! Notify the provider. Pain early after surgery indicated increased ocular pressure, infection, or hemorrhage.
A patient post op cataract surgery asks you if they can blow their nose. What should you say as the nurse?
No, blowing your nose, bending forward, or straining can increase intraocular pressure (IOP). Do not do any type of straining for a few days after surgery.
A patient who just underwent eye surgery was admitted to the hospital d/t an MI. What should the nurse do?
make sure they get their eye medication, as they must take it as prescribed
What is glaucoma?
Diseases that damage the optic nerve. Commonly d/t an increase in the intraocular pressure. S/s include blurred vision, HA, halos around lights, eye redness, loss of peripheral vision
How soon does glaucoma need to be diagnosed?
EARLY to prevent vision loss, cant reverse damage that has occured but can control IOP
What type of glaucoma is most common? What is the patho?
Open angle
obstruction in the flow of virterous humor of the eye –> increased IOP–> damage to nerve fiber–> loss of vision
What is the recommended screening schedule for glaucoma?
2-4 years before 40
1-3 years between 40-54
1-2 years between 55 and 64
6-12 years over 65
How does a provider diagnose glaucoma?
comprehensive dilated eye exam
measure IOP and visual acuity (air blown in eye) tonometry
What happens when glaucoma is left untreated?
leads to complete loss of visual sensory perception
What are the two types of glaucoma?
Open angle glaucoma
Angle Closure Glaucoma
Is open angle glaucoma a slow or fast onset?
slow onset of elevated IOP
mild eye pain
commonly affects both eyes with no s/s in early stages
Treat with Beta B and cholinergics
Is angle closure glaucoma a slow or fast onset?
Rapid onset of elevated IOP
severe pain and nausea
Medical emergency
Treat with IV or PO Diamox (diuretic) plus topical beta blocker and miotics, then surgery
we use a diuretic to get rid of the increased fluid FAST
What are the opthalmic agents used to treat glaucoma?
adrenergic (purple lid)
beta blocker (blue/ yellow lid)
miotics/ cholinesterase inhibitors (green lid)
carbonic anydrase inhibitors (orange lid)
prostaglandin analogues (teal lid)
What is the antidote for cholinergics used to treat glaucoma?
atropine
With open angle glaucoma, how should you take your medications?
Stick to a strict medication routine, space them every 5 minutes apart. Apply to the conjunctival sac, avoid blinking, apply pressure to the eye. Eye drops first then apply ointment.
A patient is taking a beta blocker with a blue/ yellow lid. What s/s should you alert the provider of?
bradycardia, CHF, syncope, bronchospasms, depression, confusion, sexual dysfunction
How do beta blockers treat glaucoma?
decreases production of aqueous humor
What should you do as the nurse to monitor the patient for adverse effects when taking BetaB?
monitor v/s, cognitive awareness, respiratory status
Why should you use caution using a beta blocker in these specific patients…?
Asthma, DBM and CHF patients, can cause vasodilation
What medications are in the adrenergic class (purple lid)
lopidine, alphagan, epinal
What should you monitor for when giving lopidine, alphagan, or epinal?
palpitations, HTN, tremor, sweats
What nursing interventions will you use when monitoring for side effects of lopidine, alphagan, or epinal?
monitor V/S, neuro function, and respiratory status
What class of medication does pilocarpine or humorsol belong to ?
miotics/ cholinesterase inhibitors (green lid)
How does cholinergic- miotic (pilocarpine) treat glaucoma?
constricts pupil –> open canal and increases flow of aqueous fluid
What should you teach your patient to watch for when taking pilocarpine/ humorsol?
bronchospasms, salivation, nausea, vomiting, diarrhea, abdominal pain, lacrimation
cholinergic effects
What nursing interventions should you implement when administering pilocarpine/ humorsol?
monitor V/S, bowel pattern, pain level, tear production
Whats the difference in timolol and pilocarpine?
pilocarpine helps by improving fluid drainage, timolol reduces fluid production. both lower eye pressure, and they may be used together
What medications belong to the carbonic anhydrase inhibitors class?
dorzolamide hydrochloride (Trusopt) and Brinsolamide (Aspot) (orange lid)
A patient taking Trusopt/ Asopt is exhibiiting s/s of fatigue, renal failure, hypokalemia, diarrhea, depression, and COPD exacerbation. What is your priority action as the nurse?
Alert provider
What nursing interventions will you implement when administering a carbonic anyhdrase Inhibitor?
monitor V/S, Potassium levels, bowel patterns, COPD management
What medication class does Latanoprost (Xaltan) and Bimatoprost (Lumigan) belong to?
Prostaglandin Analogues (teal lid)
When administering Latanoprost/ Bimatoprost, what s/s would you need to report to the provider? What nursing interventions would you implement?
changes in eye color, periobirtal edema, itching; monitor eye color, edema and itching
What are the s/s of a detached retina? When does the patient typically have the s/s?
small flashes (shooting stars), thin lighting streaks, floaters;
curtain like shadow
reduced peripheral vision
mainly seen in a dark room with affected eye
What is a gas bubble in relation to a detached retina? What should you teach the patient for it?
a gas bubbles helps reattach the retina by pushing it into the back of the eye; keep head in position instructed by surgeon to promote reattachment; report nausea and vomiting, changes in vision, or pain
What should you teach a patient who has macular degeneration?
stop smoking, manage diabetes, HTN, cholesterol
wear ultraviolet sunglasses
excercise routinely
increase intake of neccessary vitamins