The nurse is deciding on a dosage schedule for methylphenidate (Ritalin). The nurse recognizes that which time is the most appropriate to administer this drug for maximum effectiveness?

Before breakfast or lunch

With meals

After dinner

At bedtime

Answer and Explanation

The Correct Answer is A

A. Before breakfast or lunch

Methylphenidate (Ritalin), a stimulant medication commonly used to treat attention deficit hyperactivity disorder (ADHD), is usually administered before breakfast or lunch for maximum effectiveness. This schedule helps align the peak concentration of the medication with the times when increased focus and attention are often needed, such as during school hours.

B. With meals

While it can be administered with meals, the goal is often to have the medication take effect before meals to help with focus and attention during activities like school or work.

C. After dinner

Administering methylphenidate after dinner may interfere with the patient's ability to fall asleep, as the medication can cause insomnia. It is generally recommended to avoid administering it in the late afternoon or evening.

D. At bedtime

Administering methylphenidate at bedtime is not appropriate due to the potential for insomnia. The stimulant effect of the medication is not aligned with the patient's sleep-wake cycle.

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Correct Answer is A

Explanation

A. The importance of consuming adequate amounts of water

When instructing a patient who will take psyllium (Metamucil) to treat constipation, it is crucial to emphasize the importance of consuming adequate amounts of water. Psyllium is a bulk-forming laxative that works by absorbing water in the intestines, forming a gel-like mass that helps soften stools and promote bowel movements. Without sufficient water intake, psyllium may cause an obstruction or worsen constipation.

B. The need to monitor for systemic side effects.

Psyllium is generally well-tolerated and is not associated with significant systemic side effects. The primary consideration is ensuring proper hydration.

C. The onset of action of 30-60 minutes after administration.

Psyllium is not a fast-acting laxative. It usually takes a longer time to produce its effects, and patients should not expect an immediate response within 30-60 minutes.

D. The need to use the dry form of psyllium to prevent cramping.

Using the dry form of psyllium is not recommended, as it may increase the risk of choking or swallowing difficulties. It is typically recommended to mix psyllium with a sufficient amount of water or other liquids to prevent cramping and ensure proper absorption.

A. "Continue taking OCPS because phenytoin is not safe during pregnancy." B. "You should use a backup method of contraception along with OCPs." C. "You should stop taking OCPs because of drug-drug interactions with phenytoin." D. "You should take low-dose aspirin while taking these medications to reduce your risk of stroke."

Correct Answer is B

Explanation

A. "Continue taking OCPS because phenytoin is not safe during pregnancy."

This statement is not accurate. While it's essential to address pregnancy risk, phenytoin can reduce the effectiveness of oral contraceptives. Women on phenytoin are often advised to use additional contraceptive measures.

B. "You should use a backup method of contraception along with OCPs."

This is the correct response. Phenytoin can accelerate the metabolism of oral contraceptives, potentially reducing their effectiveness. Using a backup method, such as condoms, is recommended to ensure adequate contraception.

C. "You should stop taking OCPs because of drug-drug interactions with phenytoin."

This advice is generally not recommended without consulting the healthcare provider. Abruptly stopping OCPs without an alternative form of contraception can increase the risk of unintended pregnancy.

D. "You should take low-dose aspirin while taking these medications to reduce your risk of stroke."

This statement is not relevant to the situation described. Low-dose aspirin is not typically recommended for contraception, and its use in this context does not address the potential interaction between phenytoin and oral contraceptives.

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The nurse is deciding on a dosage schedule for methylphenidate (Ritalin). The nurse recognizes that which time is the most appropriate to administer this drug for maximum effectiveness?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is instructing a patient who will take psyllium (Metamucil) to treat constipation. What information will the nurse include when teaching the patient?

Correct Answer is A

Explanation

A 25 year-old female patient will begin taking phenytoin for epilepsy. The patient tells the nurse she is taking oral contraceptives (OCPs). Which response will the nurse give?

Correct Answer is B

Explanation

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