Which vitamin will reduce the therapeutic effects of levodopa?

Answer and Explanation

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.

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Correct Answer is B

Explanation

A. Insert a padded tongue blade into the client's mouth.

This intervention is not recommended. Placing any object, including a padded tongue blade, into the mouth of someone experiencing a seizure poses a risk of injury, such as biting the tongue or breaking teeth. It can also obstruct the airway and increase the risk of aspiration. Therefore, inserting anything into the client's mouth during a seizure is contraindicated.

B. Place a pillow under the client's head.

Placing a pillow under the client's head can help prevent head injury by providing cushioning and support. It can also help maintain the client's airway and reduce the risk of aspiration. Therefore, this intervention is appropriate and helps ensure the client's safety during the seizure.

C. Gently restrain the client's extremities.

Restraining the client's extremities is not recommended during a seizure. It can increase the risk of injury, such as fractures or dislocations, and may exacerbate muscle contractions. It's important to allow the client's movements to occur naturally while taking measures to ensure their safety, such as removing nearby objects and providing a safe environment.

D. Keep the client in a supine position.

It is essential to ensure that the client's head is turned to the side (recovery position) to prevent aspiration and allow for drainage of oral secretions. Additionally, the nurse should remove any nearby objects that could pose a risk of injury during the seizure.

A. Fresh fish B. Cheddar cheese C. Cherries D. Chicken

Correct Answer is B

Explanation

A. Fresh fish

Fresh fish does not contain significant amounts of tyramine. Therefore, there is no need to eliminate fresh fish from the client's diet due to its interaction with selegiline.

B. Cheddar cheese

This is the correct answer. Cheddar cheese is a high-tyramine food and should be eliminated from the client's diet when taking MAOIs. Aged cheeses, such as cheddar, contain high levels of tyramine due to the fermentation process, which can increase the risk of a hypertensive crisis when combined with MAOIs.

C. Cherries

Cherries do not contain significant amounts of tyramine. Therefore, there is no need to eliminate cherries from the client's diet due to their interaction with selegiline.

D. Chicken

Chicken does not contain significant amounts of tyramine. Therefore, there is no need to eliminate chicken from the client's diet due to its interaction with selegiline.

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Which vitamin will reduce the therapeutic effects of levodopa?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse enters a client's room and finds the client on the floor in the clonic phase of a tonic-clonic seizure. Which of the following interventions should the nurse take?

Correct Answer is B

Explanation

A nurse is modifying the diet of a client who has Parkinson's disease and a prescription for selegiline, a monamine oxidase inhibitor (MAOI). Which of the following foods should the nurse eliminate from the client's diet?

Correct Answer is B

Explanation

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The nurse is preparing discharge instructions for a patient with a history of diabetes who has just been diagnosed with seizure disorder. The patient has been prescribed hydantoin therapy. What will the patient most likely experience?

Which vitamin will reduce the therapeutic effects of levodopa?

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