Which vitamin will reduce the therapeutic effects of levodopa?
B6
A
E
K
C
The Correct Answer is A
A. B6 (Pyridoxine):
Vitamin B6, also known as pyridoxine, is known to reduce the therapeutic effects of levodopa. It competes with levodopa for absorption in the gastrointestinal tract and can decrease the amount of levodopa that reaches the brain, thereby diminishing its effectiveness in treating Parkinson's disease symptoms.
B. A (Retinol):
Vitamin A, also known as retinol, is not typically associated with reducing the therapeutic effects of levodopa. Vitamin A plays important roles in vision, immune function, and cellular communication, but it does not interact with levodopa in a way that affects its therapeutic efficacy.
C. E (Alpha-Tocopherol):
Vitamin E, also known as alpha-tocopherol, is an antioxidant that plays a role in protecting cells from oxidative damage. While vitamin E supplementation is sometimes used in Parkinson's disease management for its potential neuroprotective effects, it is not known to reduce the therapeutic effects of levodopa.
D. K (Phylloquinone):
Vitamin K, also known as phylloquinone, is primarily involved in blood clotting and bone metabolism. It does not interact with levodopa in a way that reduces its therapeutic effects.
E. C (Ascorbic Acid):
Vitamin C, also known as ascorbic acid, is not known to reduce the therapeutic effects of levodopa. While vitamin C has various roles in the body, including antioxidant activity and immune function support, it does not interfere with levodopa absorption or efficacy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. "Incorporate nonverbal cues in the conversation."
This is an appropriate response. Nonverbal cues, such as gestures, facial expressions, and body language, can help convey meaning and support comprehension for individuals with aphasia. Using visual aids or pointing to objects can also enhance communication.
B. "Ask multiple choice questions as part of the conversation."
While multiple choice questions can be helpful in some situations, they may not always be appropriate for individuals with aphasia. It's important to assess the client's specific communication needs and preferences. Open-ended questions and simple, direct language may be more effective for facilitating communication.
C. "Use a higher-pitched tone of voice when speaking."
Altering the tone of voice may not necessarily improve communication for individuals with aphasia. Instead, it's important to speak in a clear, natural tone at a moderate pace. Speaking too loudly or using a higher-pitched voice may be perceived as patronizing or condescending.
D. "Use simple child-like statements when speaking."
While it's important to use simple and clear language, using child-like statements may be inappropriate and demeaning to the client. Respectful communication that acknowledges the individual's intelligence and dignity is essential. Simplify language and sentences as needed, but avoid speaking down to the client.
Correct Answer is A
Explanation
A. Orthostatic hypotension:
Orthostatic hypotension, a sudden drop in blood pressure when standing up, is a potential adverse effect of levodopa therapy. This can lead to dizziness and increase the risk of falls, thus supporting the nursing diagnosis Risk for Injury.
B. Nausea and vomiting:
Nausea and vomiting are common side effects of levodopa therapy. While they can cause discomfort and dehydration, they are less directly related to the risk of physical injury compared to orthostatic hypotension.
C. Anorexia and depression:
Anorexia (loss of appetite) and depression can occur as adverse effects of levodopa therapy. While they can affect the patient's overall well-being and quality of life, they are not directly associated with an increased risk of physical injury.
D. Tachycardia and palpitations:
Tachycardia (rapid heart rate) and palpitations are less common adverse effects of levodopa therapy. While they may indicate cardiovascular issues, they are not typically associated with a direct risk of physical injury.
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