When the patient asks what electroretinography is supposed to measure, the nurse responds that:
1. a fluorescein dye is injected by IV and the retina is observed as the dye circulates.
2. electrodes are placed on the scalp, each eye is stimulated, and retinal activity is assessed.
3. a small plunger is used to apply pressure on the sclera while the retinal vessels are evaluated.
4. a contact lens is placed on the eye and exposed to flashes of light to evaluate the retinal response.
4
A contact lens is placed on the eye and retinal activity is assessed as lights are flashed into the eye. The other three options describe fluorescein angiography, visual evoked response, and opthodynamometry, respectively.
PTS: 1 DIF: Cognitive Level: Analysis REF: 1163
OBJ: 4 TOP: Electroretinography
KEY: Nursing Process Step: Implementation
MSC: NCLEX: Health Promotion and Maintenance
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