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 C
Explanation
The correct answer is c. The importance of consuming adequate amounts of water.
Rationale for Choice A:
- Statement:The need to monitor for systemic side effects.
- Rationale:It's not accurate to prioritize monitoring for systemic side effects when teaching a patient about psyllium (Metamucil).Psyllium is a bulk-forming laxative that primarily acts within the gastrointestinal tract,and systemic side effects are rare.While it's essential to be aware of potential side effects,focusing on them during initial teaching might cause unnecessary anxiety.
Rationale for Choice B:
- Statement:The need to use the dry form of Metamucil to prevent cramping.
- Rationale:This statement is incorrect.It's generally recommended to mix psyllium with water or another liquid before ingestion.Consuming the dry form can increase the risk of choking and might not adequately hydrate stool.
Rationale for Choice C:
- Statement:The importance of consuming adequate amounts of water.
- Rationale:This is the most crucial information to emphasize when teaching about psyllium.Psyllium works by absorbing water and forming a bulky gel that softens stool and promotes bowel movements.Without sufficient water intake,psyllium can cause constipation to worsen or lead to intestinal obstruction.
Rationale for Choice D:
- Statement:The onset of action of 30 to 60 minutes after administration.
- Rationale:This statement is inaccurate.Psyllium is not a fast-acting laxative.It typically takes 12-72 hours to produce a bowel movement.Informing patients about the expected time frame for results is essential to manage expectations and prevent unnecessary medication overuse.
Correct Answer is A
Explanation
This is the recommended dosage for the prevention and treatment of osteoporosis in postmenopausal women.
Choice B is wrong because 70 mg once a week is the dosage for alendronate (Fosamax), not ibandronate.
Choice C is wrong because 400 mg/d is the dosage for etidronate (Didronel), not ibandronate.
Choice D is wrong because ibandronate should be taken on an empty stomach, at least 60 minutes before food or drink.
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