A nurse is caring for a patient who has a cloudy, opaque area over the lens of one eye. Which of the following visual impairments should the nurse identify this as a symptom of?
Glaucoma.
Diabetic retinopathy.
Macular degeneration.
Cataract.
The Correct Answer is D
Choice A rationale
Glaucoma is a condition that damages the eye’s optic nerve and can result in vision loss and blindness. However, it doesn’t cause a cloudy, opaque area over the lens of the eye.
Choice B rationale
Diabetic retinopathy is a diabetes complication that affects eyes. It’s caused by damage to the blood vessels of the light-sensitive tissue at the back of the eye (retina). But it doesn’t cause a cloudy, opaque area over the lens of the eye.
Choice C rationale
Macular degeneration is a medical condition which may result in blurred or no vision in the center of the visual field. But it doesn’t cause a cloudy, opaque area over the lens of the eye.
Choice D rationale
A cataract is a clouding of the lens in the eye that affects vision. Cataracts are very common in older people. Symptoms of cataracts include cloudy or blurry vision.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["24"]
Explanation
Step 1 is: To find out how many mL/hr the IV pump should be set to deliver, we need to set up a proportion with the prescribed units of heparin on one side and the available units of heparin on the other side. So, the calculation is: (1,200 units/hr ÷ 25,000 units) × 500 mL = 24 mL/hr.
Therefore, the IV pump should be set to deliver 24 mL/hr.
Correct Answer is B
Explanation
Choice A rationale
0.9% sodium chloride, also known as normal saline, is an isotonic solution that is commonly used for hydration and to replace lost fluids. However, it does not provide any calories or nutrients, which are necessary for patients receiving TPN1.
Choice B rationale
Dextrose 10% in water (D10W) is the recommended solution to administer until the next TPN solution is available. This is a hypertonic fluid that provides dextrose to the patient, helping to maintain their blood glucose levels and reducing the risk of hypoglycemia.
Choice C rationale
3% sodium chloride is a hypertonic saline solution that is typically used to treat patients with severe hyponatremia (low sodium levels). It is not suitable as a replacement for TPN as it does not provide the necessary nutrients and can lead to hypernatremia (high sodium levels) if used inappropriately.
Choice D rationale
Lactated Ringer’s solution is an isotonic solution that is commonly used for fluid resuscitation in patients with significant fluid loss. While it does contain multiple electrolytes that mimic those found in plasma, it does not provide any calories or nutrients, making it unsuitable as a replacement for TPN1.
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