The client, newly diagnosed with diabetic retinopathy, asks what caused this disorder.
What is the nurse’s best response?
Inability of oxygen to diffuse to tissues in the eye.
Loss of innervation throughout the eye.
Inability of cells in the eye to reproduce.
Increase of aqueous humor in the eye.
The Correct Answer is D
Oxygen cannot diffuse rapidly across the membrane to tissues in the eye. Diabetic retinopathy is caused by damage to the blood vessels of the retina, which is the light-sensitive tissue at the back of the eye. This damage can reduce the oxygen supply to the retina and lead to vision problems.
Choice A is wrong because cells in the eye can reproduce normally, but they may not function properly due to high blood sugar levels or lack of oxygen.
Choice B is wrong because diabetic retinopathy does not affect the production of aqueous humor, which is the fluid that fills the front part of the eye.
However, diabetes can cause another eye condition called glaucoma, which is caused by increased pressure from too much aqueous humor.
Choice C is wrong because diabetic retinopathy does not affect the nerve innervations throughout the eye.
However, diabetes can cause another eye condition called diabetic neuropathy, which is caused by damage to the nerves that control eye movement and pupil dilation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Glycerin suppositories are safe and effective for infants with constipation. They work by lubricating and softening the stool, and stimulating the rectal muscles to contract.
Choice B is wrong because magnesium hydroxide is not recommended for infants under 6 months of age, and may cause diarrhea, electrolyte imbalance, or magnesium toxicity.
Choice Cis wrong because watchful waiting for 24 hours may not be enough to relieve the infant’s discomfort and may lead to further complications such as fecal impaction or dehydration.
Choice Dis wrong because feeding supplementation with free water may not be sufficient to treat constipation, and may dilute the infant’s intake of nutrients and electrolytes.
Correct Answer is C
Explanation
This strategy can help the client read the numbers on the syringe and prepare the correct dose of insulin. A magnifying glass is also an affordable and accessible tool for the client.
Choice A is wrong because preparing a week’s supply of syringes and refrigerating them can affect the potency and sterility of insulin.
It can also increase the risk of errors or confusion.
Choice B is wrong because asking a neighbor to come over every day to prepare the medication can compromise the client’s privacy and independence.
It can also be unreliable and inconvenient for both parties.
Choice D is wrong because changing the client to oral antidiabetics is not possible for type 1 diabetes.
People with type 1 diabetes need to take insulin for life because their pancreas cannot make insulin.
Oral antidiabetics are only effective for people with type 2 diabetes who have functioning pancreatic beta cells
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