An older adult patient asks the nurse what caused his cataract. The nurse's response is based on which information?
The usual cause of cataracts in older people is congenital
Cataracts commonly develop when a patient has asthma.
The most common cause of a cataract is an injury to the eye.
The most common cause of a cataract is aging.
The Correct Answer is D
A. Congenital cataracts are present at birth and are relatively rare. In older adults, cataracts are primarily associated with age-related changes rather than congenital factors.
B. While certain medications used to treat asthma, like corticosteroids, can contribute to the development of cataracts, asthma itself is not a direct cause of cataracts. This connection is not strong enough to be considered a common cause.
C. While eye injuries can lead to cataract formation, they are not the most common cause, especially in the older adult population. Most cataracts develop due to age-related changes rather than trauma.
D. The most prevalent cause of cataracts, especially in older adults, is aging. As people get older, changes in the lens of the eye can lead to clouding, resulting in cataracts. Factors like UV exposure, smoking, and certain medical conditions may also contribute, but aging is the primary and most common factor.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Cephalosporins are a class of antibiotics that can, in some cases, cause liver enzyme elevations and hepatotoxicity. While not all cephalosporins are associated with significant liver toxicity, there have been reports of liver dysfunction with some members of this class.
B. Sulfonamides can also cause hepatotoxicity, particularly in certain individuals. They are known to occasionally lead to liver enzyme elevations and even more severe liver damage in susceptible patients.
C. Penicillins are generally considered safe regarding hepatotoxicity; however, there can be rare instances of liver enzyme elevation associated with some penicillin derivatives, particularly in cases of prolonged use or in patients with existing liver disease. Nonetheless, they are not commonly associated with significant hepatotoxicity.
D. Fluoroquinolones can cause liver toxicity, although it is relatively rare. Some fluoroquinolones have been associated with elevated liver enzymes and other hepatic issues.
Correct Answer is A
Explanation
A. DKA is characterized by the production of ketones, which can lead to a fruity or acetone-like odor on the breath. Additionally, the increased respiratory rate (Kussmaul breathing) occurs as the body attempts to compensate for metabolic acidosis by blowing off carbon dioxide.
B. While clients with diabetes may experience hunger, it is not a primary symptom of DKA. Hypotension (rather than hypertension) is more commonly observed due to dehydration and fluid loss associated with DKA.
C. Cold, clammy skin suggests the body is in a sympathetic state due to low blood sugar. While irritability can occur in various situations, it is not a hallmark sign of DKA.
D. Sweating and tremors are symptoms of low blood sugar levels and are not characteristic of DKA. In DKA, patients typically present with dry skin due to dehydration.
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