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 D
Explanation
Choice A.Isoetharine is a bronchodilator that works by relaxing muscles in the airways to improve breathing. It is not a mast cell stabilizer.
Choice B is wrong because aminophylline is a bronchodilator that relaxes the muscles in the airways and is used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). It is not a mast cell stabilizer.
Choice C is wrong becauseIpratropium is an anticholinergic bronchodilator that helps to open up the airways in the lungs. It is used in the treatment of COPD and sometimes asthma, but it is not a mast cell stabilizer.
Choice D. Cromolyn is a mast cell stabilizer that helps prevent the release of substances in the body that cause inflammation and asthma symptoms. It is used for the prevention of asthma attacks and is particularly effective in managing exercise-induced asthma and allergic asthma triggers.
Correct Answer is D
Explanation
Glargine is a long-acting insulin that can provide a steady level of insulin for up to 24 hours. This would be suitable for a client who does not want to administer insulin on the plane, as they can take it once a day at the same time.
Choice A. Glulisine is wrong because glulisine is a rapid-acting insulin that starts working within 15 minutes and lasts for 3 to 4 hours.
This would require frequent injections and monitoring of blood glucose levels.
Choice B. Lispro is wrong because lispro is also a rapid-acting insulin that starts working within 15 minutes and lasts for 3 to 4 hours.
This would also require frequent injections and monitoring of blood glucose levels.
Choice C. Aspart is wrong because aspart is another rapid-acting insulin that starts working within 15 minutes and lasts for 3 to 4 hours.
This would also require frequent injections and monitoring of blood glucose levels.
Normal ranges for blood glucose levels are 70 to 130 mg/dL before meals and less than 180 mg/dL two hours after meals.
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