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Author Question: A nurse assesses an older adult's color perception. Which of the following colors should the nurse ... (Read 71 times)

luvbio

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on: Jul 11, 2018
A nurse assesses an older adult's color perception. Which of the following colors should the nurse expect the client to have the most difficulty visualizing?
 
  A) Blue and violet hues
  B) Yellow tones
  C) White and off-white
  D) Tan and brown wavelengths

Question 2

A nurse assesses a 79-year-old adult noting the presence of a white ring around the iris bilaterally. What is the correct term for this?
 
  A) Glaucoma
  B) Arcus senilis
  C) Arthritis
  D) Presbyopia


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Kingjoffery

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Reply #1 on: Jul 11, 2018
Answer to Question 1

Ans: A
These age-related changes decrease responsiveness of the lens and increase the diffusion of light rays, resulting in fewer rays reaching the retina. The most detrimental effect occurs with the shorter blue and violet wavelengths.

Answer to Question 2

Ans: B
Arcus senilis (also called corneal arcus) is evidenced by the development of yellow or gray-white ring around the iris. Glaucoma is related to pressure changes, not changes to the iris. Arthritis is unrelated to eye health. Presbyopia is an age-related visual acuity change.


luvbio

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Reply 2 on: Jul 11, 2018
Great answer, keep it coming :)

vickybb89

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Reply 3 on: Yesterday
Gracias!

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