A nurse is preparing to administer amantadine 150 mg PO for a client who is experiencing parkinsonism due to an antipsychotic medication.

Available is amantadine 50 mg/5 mL oral solution.

How many mL should the nurse administer?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["15"]

Step 1 is to determine the amount of amantadine needed, which is 150 mg as prescribed.

Step 2 is to calculate the volume of the solution needed to deliver this dose. The available solution has a concentration of 50 mg per 5 mL. Using the formula:

(Prescribed dose ÷ Available dose) × Volume per dose

(150mg ÷ 50mg) × 5mL = 15mL

Therefore, the correct answer is 15 mL.

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Correct Answer is D

Explanation

Choice A rationale:

Switching brands of phenytoin can lead to variations in drug absorption and serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.

Choice B rationale:

Altering the phenytoin administration regimen each week can lead to fluctuations in serum drug levels, potentially leading to a loss of seizure control or toxicity. Therefore, this is not a correct instruction.

Choice C rationale:

Phenytoin does not turn urine blue. This is a side effect associated with some other medications, but not phenytoin. Therefore, this is not a correct instruction.

Choice D rationale:

Alcohol can increase serum phenytoin levels, potentially leading to toxicity. Therefore, this is a correct instruction.

So, the correct answer is D. Alcohol increases the chance of phenytoin toxicity.

Correct Answer is ["6"]

Explanation

Step 1 is to determine the amount of haloperidol lactate that needs to be administered, which is 12 mg.

Step 2 is to calculate the volume of the haloperidol oral solution needed to deliver this dose. This is done using the formula:

Dose (mg) ÷ Concentration (mg/mL)

Given that the available concentration is 2 mg/mL, we calculate:

12 mg ÷ 2 mg/mL = 6 mL

Therefore, the nurse should administer 6 mL of the haloperidol oral solution.

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reinforcing discharge teaching with a client who has a prescription for phenytoin.Which of the following instructions should the nurse include in the teaching?.

Correct Answer is D

Explanation

Correct Answer is ["6"]

Explanation

A nurse is reinforcing teaching with a client who is taking benztropine to treat Parkinson's disease.The nurse should instruct the client to report which of the following findings as an adverse effect of the medication?.

A nurse is preparing to administer phenytoin 75 mg PO. Available is phenytoin suspension 25 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is reviewing the medication administration records of a group of clients who have been newly admitted to a long-term care facility.Which of the following clients should the nurse monitor for extrapyramidal symptoms?.

A nurse is preparing to administer amitriptyline 150 mg PO. The amount available is amitriptyline 75 mg/ tablet. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero

A nurse is reinforcing teaching with a client who has Parkinson's disease. The client tells the nurse that he gets nausea when he takes his prescribed levodopa/carbidopa. Which of the following foods should the nurse recommend the client take with the medication?.

A nurse is reinforcing dietary teaching for a client who is to start taking a monoamine oxidase inhibitor (MAOI). Which of the following food choices should the nurse identify as having the highest tyramine content?.

A nurse is preparing to administer lorazepam 1 mg PO to an older adult client who has insomnia and who cannot swallow oral tablets. Available is lorazepam oral solution 2 mg/mL. How many mL should the nurse plan to administer? (Round to the nearest tenth. Use a leading zero if it applies.)

A nurse in the emergency department is assisting with the care of a client who has myasthenia gravis and is in crisis. The nurse should identify that which of the following factors can cause a myasthenic crisis?.