A patient diagnosed with macular degeneration asks the nurse to explain his condition. Which statement by the nurse best describes macular degeneration?
"The pressure in the anterior cavity of your eye became elevated, shifting the position of your lens.
"There's an irregular curvature of your cornea, causing your blurred vision'
The portion of your eye call the macula, which is responsible for the central vision, is damaged"
"Your lens became cloudy, causing blurred vision. This cloudiness will increase over time
The Correct Answer is C
A. This statement describes glaucoma, not macular degeneration. Glaucoma is characterized by increased intraocular pressure that can lead to optic nerve damage and vision loss. It does not specifically pertain to damage of the macula or central vision.
B. This statement refers to conditions like astigmatism, where the cornea has an irregular shape, leading to blurred vision. It is not relevant to macular degeneration, which involves damage to the retina rather than the curvature of the cornea.
C. This statement accurately describes macular degeneration. The macula is the part of the retina responsible for sharp central vision, which is crucial for tasks like reading and recognizing faces. In macular degeneration, this area deteriorates, leading to loss of central vision.
D. This statement describes cataracts, where the lens of the eye becomes cloudy, leading to blurred vision. Cataracts and macular degeneration are distinct conditions, with different causes and impacts on vision.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Thiazide diuretics can lead to hypokalemia (low potassium levels) as they increase potassium excretion in the urine. Therefore, increasing potassium intake is crucial to prevent hypokalemia and its associated complications, such as arrhythmias.
B. While magnesium levels can also be affected by diuretics, it's not as significant as potassium depletion.
C. Thiazide diuretics can actually increase calcium reabsorption in the kidneys, leading to potential hypercalcemia. Therefore, increasing calcium intake is not recommended.
D. Thiazide diuretics are used to reduce sodium and water retention, so increasing sodium intake would counteract their effect.
Correct Answer is A
Explanation
A. Primary hypertension, also known as essential hypertension, is characterized by high blood pressure that does not have a known secondary cause. It accounts for the majority of hypertension cases and is thought to result from a combination of genetic, environmental, and lifestyle factors.
B. While treatment is important for all forms of hypertension to prevent complications, this statement is somewhat misleading. The term "essential" in primary hypertension refers to the lack of a specific identifiable cause, not that it is necessarily more critical to treat than other forms of hypertension.
C. This definition describes secondary hypertension, not primary hypertension. Secondary hypertension results from an identifiable underlying condition, such as kidney disease or hormonal disorders.
D. Primary hypertension can vary in severity, but it is not exclusively severe or life-threatening. While uncontrolled hypertension can lead to serious complications, primary hypertension itself does not automatically imply a critical state.
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