A nurse is preparing to administer phenytoin 300 mg PO every 12 hr to a client who has a seizure disorder. Available is phenytoin oral suspension 125 mg/5 mL. How many mL should the nurse administer per dose? (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 ["12"]

To calculate the dose of phenytoin oral suspension for a client with a seizure disorder, the nurse needs to use the following formula:

Dose (mL) = Ordered dose (mg) / Concentration (mg/mL)

In this case, the ordered dose is 300 mg and the concentration is 125 mg/5 mL. Therefore, the dose in mL is:

Dose (mL) = 300 mg / (125 mg/5 mL)

Dose (mL) = 300 mg x (5 mL/125 mg)

Dose (mL) = 12 mL

The nurse should round the answer to the nearest whole number, which is 12 mL. The nurse should administer 12 mL of phenytoin oral suspension every 12 hours to the client.

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Free Nursing Study Resources

Correct Answer is ["4"]

Explanation

To calculate the dose of mycostatin oral suspension, the nurse needs to divide the prescribed amount of units by the concentration of units per mL.

In this case, the nurse should divide 400,000 units by 100,000 units/mL, which gives 4 mL.

The nurse should administer 4 mL of mycostatin oral suspension every 6 hours as ordered.

Correct Answer is ["0.7"]

Explanation

To calculate the dose of chlorpromazine for a child who weighs 66 lb, first convert the weight to kilograms by dividing by 2.2.

This gives 66 / 2.2 = 30 kg.

Then multiply the weight by the prescribed dose of 0.55 mg/kg to get the total dose in milligrams: 30 x 0.55 = 16.5 mg.

Finally, divide the total dose by the concentration of the injection solution to get the volume in milliliters: 16.5 / 25 = 0.66 ml.

The nurse should administer 0.7 ml of chlorpromazine IM to the child.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer mycostatin 400,000 units PO every 6 hr. Available is mycostatin oral suspension 100,000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["4"]

Explanation

A nurse is preparing to administer chlorpromazine 0.55 mg/kg IM to a child who weighs 66 lb. Available is chlorpromazine 25 mg/ml. for injection. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.7"]

Explanation

A nurse is preparing to administer lactated Ringer's 500 mL IV to infuse over 4 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer lisinopril 2.5 mg PO to an older adult client. Available is lisinopril 5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer promethazine 25 mg IM to a client. Available is promethazine 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is collecting data from a client who is experiencing abdominal pain. The nurse states that they will return as soon as possible with pain medication. The nurse is demonstrating which of the following ethical principles?

A nurse is reviewing a client's new prescription for indomethacin 100 mg PO now, then 50 mg PO TID with food for pain relief. Which of the following actions should the nurse take? (Select all that apply.)