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","B","C","E"]
Explanation
A. Placing padding around or under the patient's head
This is a helpful instruction to include. Placing padding around or under the patient's head can help prevent injury during a seizure by cushioning the head against impact with the ground.
B. Positioning the patient on the side once the relaxation stage is entered to allow oral secretions to drain
This is a correct instruction. Positioning the patient on their side (recovery position) can help prevent aspiration if vomiting occurs during or after the seizure. It also helps clear oral secretions and maintain a clear airway.
C. Having the necessary equipment and/or personnel in case the patient doesn't spontaneously breathe when the seizure is over
This is an important instruction. It is crucial to have emergency equipment (such as oxygen and suction) readily available and to be prepared to provide respiratory support if the patient does not spontaneously breathe after the seizure.
D. Inserting a tongue depressor in the patient's mouth
This is an incorrect instruction. It is not recommended to insert anything into the patient's mouth during a seizure as it can cause injury to the teeth, gums, or airway. Additionally, it is a common misconception that tongue swallowing occurs during seizures, which is rare.
E. Noting the time the seizure started
This is a critical instruction. Noting the time the seizure started helps healthcare providers assess the duration of the seizure and determine if medical intervention is necessary. It also helps monitor the patient's recovery and response to treatment.
F. Holding the patient down to prevent injury
This is an incorrect instruction. Holding the patient down during a seizure can cause injury to both the patient and the person restraining them. It is important to create a safe environment by removing hazards and guiding the patient away from dangerous objects or situations, but holding them down is not appropriate.
Correct Answer is C
Explanation
A. Check the client for a fecal impaction.
This intervention is important for managing autonomic dysreflexia because a fecal impaction can trigger autonomic dysreflexia by causing rectal distention. However, it is not the first action the nurse should take. Promptly addressing the immediate cause of autonomic dysreflexia is crucial to prevent complications.
B. Ensure the room temperature is warm.
This intervention is important for maintaining the client's comfort and preventing temperature-related complications. However, it is not the first action the nurse should take when suspecting autonomic dysreflexia. Immediate interventions to address the underlying cause of autonomic dysreflexia are necessary to prevent serious complications such as stroke or seizure.
C. Check the client's bladder for distention.
This is the correct action to take first. Bladder distention is one of the most common triggers of autonomic dysreflexia in individuals with spinal cord injuries. A distended bladder stimulates autonomic reflexes, leading to a sudden increase in blood pressure. Therefore, the nurse should assess the client's bladder for distention and initiate appropriate interventions such as catheterization to relieve urinary retention.
D. Raise the head of the bed.
While elevating the head of the bed can help reduce blood pressure in some situations, it is not the first action the nurse should take when suspecting autonomic dysreflexia. Elevating the head of the bed may exacerbate autonomic dysreflexia by increasing venous return and blood pressure. Therefore, addressing the underlying cause of autonomic dysreflexia, such as bladder distention, takes priority.
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