Author Question: A patient has sought medical attention because of a loss of different half-fields in the two eyes. ... (Read 63 times)

javeds · **on:** Jun 25, 2018

A patient has sought medical attention because of a loss of different half-fields in the two eyes. Knowing the potential causes of this complaint, the nurse anticipates that the physician will order tests looking for

A)
metal fragments in the eyes.
B)
hemorrhages in the capillaries of both eyes.
C)
an enlarging pituitary tumor.
D)
subarachnoid hemorrhage.

Question 2

A public health nurse is teaching a health promotion class to a group of older adults at a seniors' center.

A woman attending states that, My husband has got dry macular degeneration, and I don't know what we're going to do when he goes blind from it. How can the nurse best respond to the woman's statement?
A)
Vitamins C and E as well as zinc and beta carotene may have some value in slowing the progression of his disease.
B)
You should talk to your doctor about the surgical options that might help preserve his sight.
C)
If your husband can lower his blood pressure and bad cholesterol, it can possibly slow the progression of his disease.
D)
Cataract surgery is showing promise as a way of replacing the part of the eye associated with macular degeneration.

joshbk44 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Ans:
C

Feedback:

Enlarging pituitary tumors can produce longitudinal damage through the optic chiasm with loss of medial fibers of the optic nerve representing both nasal retinas and both temporal visual half-fields. The loss of different half-fields in the two eyes is called a heteronymous loss. Metal fragments can get in the eye from welding. Hemorrhages in both eyes have numerous causes like uncontrolled hypertension and diabetes. Subarachnoid hemorrhages are usually trauma related.

Answer to Question 2

Ans:
A

Feedback:

Vitamin E, vitamin C (ascorbic acid), zinc, and beta carotene have shown promise at slowing the progression of the age-related macular degeneration in persons with the disease. Surgical options are not normally available for the dry variety of macular degeneration. Blood pressure control, cholesterol control, and cataract surgery are unlikely to be directly useful.