Download NURS 302 Test 1: Eyes/Ears Questions with Complete Solutions and more Exams Nursing in PDF only on Docsity!
NURS 302 Test 1: Eyes/Ears Questions
With Complete Solutions
Plays largest role in refraction correct answer: Cornea Causes light rays to focus on retina correct answer: Lens Translation of image occurs at the ___________ correct answer: Occipital cortex Between cornea and iris correct answer: Anterior chamber Between iris and lens correct answer: Posterior chamber Between lens and retina correct answer: Posterior cavity Where iris meets the cornea; expels the aqueous humor. Becomes clogged in glaucoma correct answer: Angle Normal IOP correct answer: 10- Test for IOP correct answer: Tonometry Nearsightedness Light rays in front of the retina Long eye Lens swelling w/ hyperglycemia correct answer: Myopia Farsightedness
Light behind retina Short eye correct answer: Hyperopia Lose ability to accommodate Age related hyperopia Lens is less pliable correct answer: Presbyopia Irregular or unequal curvature of cornea Cornea is shaped like an oval correct answer: Astigmatism Absence of lens Congenital or d/t cataract surgery Need intraocular lens implantation correct answer: Aphakia Surgery w/ mini knife Only corrects mild myopia Surgeon causes scarring to cause rays to focus on retina correct answer: Radial Keratotomy Surgery w/ excimer laser Corrects low-moderate myopia, hyperopia, and astigmatism correct answer: Photorefractive Keratotomy Surgery w/ excimer laser Flap of cornea folded back **Best choice for severe myopia correct answer: LASIK No light perception or useable vision Need seeing eye dog and cane correct answer: Total blindness Some light perception, no useable vision
S/S: Itch, burn, clear drainage Tx: Corticosteroids correct answer: Viral Type of conjunctivitis Aka Trachoma S/S: Lime green drainage, cherry red eye Tx: Eval for STD correct answer: Chlamydial Type of conjunctivitis S/S: Itching Tx: Remove allergen first! Then antihistamines, corticosteroids, artificial tears correct answer: Allergic Inflammation of the cornea correct answer: Keratitis Type of keratitis Interrupted epithelial lining (d/t curling iron, contacts) Tx: ABX correct answer: Bacterial Type of keratitis Agent: HSV, varicella, EKC Tx: Corneal debridement and antivirals **NO CORTICOSTEROIDS! correct answer: Viral Most serious ocular adenoviral disease Can cause viral keratitis correct answer: EKC Type of keratitis From soil Agent: Acanthomoeba, Candida Aspergilis Tx: Natacin correct answer: Fungal
The only antifungal for the eye correct answer: Natacin Parasite that is resistant to all drugs, so the pt must have a corneal transplant correct answer: Acanthomoeba Irrigate eye with saline __________ for a chemical trauma until ophthalmic specialist arrives correct answer: Continuously Position HOB ________ degrees to lower IOP correct answer: 45 Opacity w/in the lens S/S: Glare, milky lens, no red reflex Dx: Slit lamp microscopy and glare testing Tx: Remove lens (aphakia) --> Make them NPO! correct answer: Cataracts During a retinal detachment, patient sees ___________ flashes of light (photopsia), floaters, and ring in vision correct answer: Unilateral After retinal detachment, patient experiences a ___________ loss of peripheral or central vision correct answer: Painless __________ measurements should be first diagnostic procedure with any complaint of vision loss correct answer: Visual acuity Getting hit in the head with a volleyball places you at risk for a ____________ ___________ correct answer: Retinal detachment
Angle is completely shut S/S: Sudden pain, halos ,N/V, frosted cornea IOP= above 30 mmHg Tx: Miotics, hyperosmotics, cholinergics Surgery: Laser iridectomy correct answer: Acute angle closure Inner ear problems will cause ____________ hearing loss correct answer: Sensorineural Outer or middle ear problems will cause _________ hearing loss correct answer: Conductive Receptor organ of hearing correct answer: Cochlea In a normal _______ test, AC > BC correct answer: Rinne In a normal __________ test, there is no lateralization of sound correct answer: Weber __________ Hearing Loss Rinne: AC > BC Weber: Lateralization in unaffected ear correct answer: Sensorineural __________ Hearing Loss Rinne: BC > AC Weber: Lateralization in affected ear correct answer: Conductive AKA swimmers ear
Agent: Pseudomonas aeruginosa S/S: Otalgia, drainage, fever Tx: Alcohol based drops correct answer: External otitis middle ear infection common in kids Agent: Staph Complications: Mastoiditis, bacterial meningitis TX: Amoxicillin, myringotomy correct answer: Otitis media Fixed stapes Conductive hearing loss Tx: Stapedectomy Limit valsalva! Give antiemetics correct answer: Otosclerosis Menieres, labyrinthitis, and benign paroxysmal vertigo are all _________ ear problems Triad:
- Vertigo
- Tinnitus
- Sensorineural hearing loss correct answer: Inner Endolymph fluid in labyrinth S/S: Vertigo, tinnitus, sensorineural hearing loss Feel like being pulled to ground Nystagmus, aural fullness Tx: Antihistmaines, anticholinergics, benzodiazepines Endolymphatic shunt Avoid nicotine, caffeine, and flickering lights correct answer: Menieres
Normal hearing loss is a loss of __________ dB correct answer: 0- Slight hearing loss is a loss of __________ dB correct answer: 16- Mild hearing loss is a loss of __________ dB correct answer: 26- Moderate hearing loss is a loss of __________ dB correct answer: 41- Moderate severe hearing loss is a loss of __________ dB correct answer: 56- Severe hearing loss is a loss of __________ dB correct answer: 71- Profoundly deaf is a loss of __________ dB correct answer:
