Which of the following individuals would be considered at high ...

[lindiwe]

Which of the following individuals would be considered at high risk for developing cataracts? Select all that apply.
 
  A)
  An 88-year-old female with osteoporosis and congestive heart failure
  B)
  A 51-year-old female whose rheumatoid arthritis is controlled with oral corticosteroids
  C)
  A 50-year-old male who takes nebulized bronchodilators four times daily for the management of his emphysema
  D)
  A 39-year-old woman with a history of open-angle glaucoma and poorly controlled diabetes
  E)
  A 29-year-old artist who spends long hours in sunlight painting landscapes

Question 2

A 37-year-old male has survived a logging accident in which the severing of his femoral artery and consequent blood loss resulted in cardiogenic shock.
 
  On recovery, one of the deficits that he finds most frustrating is a significant loss of visual acuity. Which is the most likely rationale for his vision damage?
  A)
  Decreased cerebral perfusion results in progressive damage to the optic nerve.
  B)
  Circulatory collapse causes rapid death of retinal neurons.
  C)
  Lack of oxygen results in a distortion of the fovea.
  D)
  The visual cortex is susceptible to hypoxic necrosis.

[jaymee143]

Answer to Question 1

Ans:
A, B, D, E

Feedback:

Advanced age, steroid use, and sunlight exposure are all significant risk factors for the development of cataracts. Metabolically induced cataracts are caused by disorders of carbohydrate metabolism (diabetes). Use of bronchodilators is not noted to be strongly associated with cataracts.

Answer to Question 2

Ans:
B

Feedback:

Acute decreased circulation can result in sight damage from edema and death of retinal neurons. Damage to the optic nerve, the fovea, and the visual center are not likely to be contributing factors.