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
Loratadine is a second-generation antihistamine that does not cause drowsiness or sedation as a common side effect. It can relieve the symptoms of seasonal rhinitis such as sneezing, runny nose, and itching.
Choice B. Diphenhydramine is wrong because it is a first-generation antihistamine that can cause drowsiness or sedation as a common side effect.
It can also cause dry mouth, blurred vision, and urinary retention.
Choice C. Hydroxyzine is wrong because it is also a first-generation antihistamine that can cause drowsiness or sedation as a common side effect.
It can also cause dry mouth, blurred vision, and urinary retention.
It is mainly used for anxiety and itching.
Choice D. Dexchlorphen
Correct Answer is C
Explanation
A. A 12-year-old child with obsessive-compulsive disorder is not typically a candidate for misoprostol, as it is not indicated for this condition.
B. A 46-year-old trial lawyer with hypertension might need caution when using misoprostol, as it can cause diarrhea and abdominal pain, which could be problematic.
C. An 83-year-old client with rheumatoid arthritis is the best candidate for misoprostol, particularly if they are taking nonsteroidal anti-inflammatory drugs (NSAIDs) for their condition. Misoprostol is often used to prevent NSAID-induced gastric ulcers in patients at high risk, such as elderly individuals or those with a history of ulcers.
D. A 22-year-old pregnant client should not be given misoprostol unless it is used for specific obstetric indications under close supervision. Misoprostol can induce uterine contractions and is contraindicated in pregnancy unless used for medical reasons like inducing labor or treating postpartum hemorrhage.
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