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NUR 201 ( LATEST 2024 / 2025 ) SENSORY | A++ EXAM WITH ALL NEW QS & AS - GUARANTEED PASS!
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NUR 201 ( LATEST 2024 / 2025 ) SENSORY | A++ EXAM WITH ALL NEW QS & AS - GUARANTEED PASS!
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NUR 201 Sensory1. aqueous humor
moisturizes and nourishes the lens & cornea, made in the ciliary bodies
2. lens
separates the anterior and posterior chamber.
- transparent, behind iris
- attached to ciliary muscle
3. ciliary muscle
muscle that relaxes and contracts to change the shape of the lens (accommodation)
4. 10-21 mmHg
What is the normal intraocular pressure?
5. snellen chart
What is a common tool used to test visual acuity?
6. slit-lamp
This test magnifies the anterior eye structures. Patient leans on chin rest to stabilize head.
Narrow beam of light is aimed so that only a narrow segment of the eye is brightly lighted.The
examiner can then locate position of any abnormality.
7. tonometry
,measurement of intraocular pressure
8. electroretinography
The process of graphing the retina's response to light stimulation. Helpful in detecting and
evaluating blood vessel changes from disease or drugs. Graph is obtained by placing a contact
lens electrode on an anesthetized cornea. Lights at varying speeds and intensities are flashed,
and the neural re- sponse is graphed. The measurement from the cornea is identical to the
response that would be obtained if electrodes were placed directly on the retina
9. fluorescein angiography
Measures abnormal blood vessels in the eye. Have dye injected and watch blood flow in the
eye. Can turn skin yellow and urine green/yellow for 12-24 hrs
10. corneal staining
Blot some stain on the eye to see extent of scratching and injury. Use a blue light after staining
and any scratches/cuts will show up easily
11. snellen chart test
Tests visual acuity.
- cover one eye and use one eye to read
- use both eyes
- stand 20 ft away
- read lines until 3 mistakes made
- move up to line that has less than 3 mistakes
- 20/20 = normal
- 20/70 = refractive errors
- 20/200 = legally blind
12. OS
,left eye
13. OD
right eye
14. OU
both eyes
15. topical anesthetics
Proparacaine HCL, or proxymetacaine (AKTaine, Alcaine, Ocu-Caine, Ophthetic), Tetracaine
HCL, cocaine HCL (Pontacaine)
- remind pt not to rub or touch eye while it is anesthetized
- patch the eye if the patient leaves the facility before the anesthetic wears off
- instruct the patient not to use discolored solution
- teach the patient to store the bottle tightly closed
16. topical steroids
Prednisolone acetate, Prednisolone phosphate, Dexametha- sone, Betamethasone,
Fluorometholone
- tell the patient to shake the bottle vigorously before use
- teach the patient to check for corneal ulceration (pain, reduced vision, secretions)
- warn the patient not to share eyedrops with others
17. anti-infective agents
Gentamicin, Tobramycin, Ciprofloxacin, Erythromycin, Chlortetracycline, Sulfisoxazole,
, Ofloxacin, Levofloxacin
- teach the patient the importance of using the drug exactly as prescribed, even if he or she
needs to use it hourly
- teach the patient how to clean exudate from the eyes before using drops
- reinforce the importance of completing the prescribed drug regimen
18. antibiotic-steroid combinations
Tobramycin with dexamethasone, Neomycin sulfate with polymyxin B sulfate and
dexamethasone
- instructions are the same as for each component alone
19. topical antiviral agents
Trifluridine, Vidarabine
- teach the patient to refrigerate the drug and protect it from light
- teach the patient to assess for itching lids and burning eyes
20. antifungal agents
Amphotericin B, Natamycin
- teach the patient to assess for itching lids and burning eyes
21. nonsteroidal anti-inflammatory agents (NSAIDS)
Flurbiprofen, Diclofenac, Bromfenac, Ketorolac
- teach the patient to check for bleeding in the eye
- teach the patient not to wear soft contact lenses during therapy with these drugs
22. instillation of ophthalmic ointment (chart 49-1)
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