A nurse is preparing to administer chlorpromazine 0.55 mg/kg IM every 6 hr to a child who weighs 44 lb. Available is chlorpromazine 25 mg/mL injection. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.4 "]

Given:

Desired dose of chlorpromazine: 0.55 mg/kg every 6 hours
Child's weight: 44 lb
Available strength of chlorpromazine injection: 25 mg/mL

First, convert the child's weight from pounds to kilograms:

44 lb ÷ 2.20462 = 20 kg

Now, let's calculate the desired dose of chlorpromazine:

Desired dose = Dosage per kg × Weight Desired dose = 0.55 mg/kg × 20 kg Desired dose = 11 mg

Now, let's find out how many milliliters of chlorpromazine correspond to this dose: Volume (mL) = Desired dose / Concentration

Volume (mL) = 11 mg / 25 mg/mL Volume (mL) ≈ 0.44 mL

So, the nurse should administer approximately 0.4 mL of chlorpromazine per dose.

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Free Nursing Study Resources

Correct Answer is ["1 "]

Explanation

Given:

Desired dose of metronidazole: 7.5 mg/kg
Client's weight: 146.7 lb
Available strength of metronidazole tablets: 500 mg

First, convert the client's weight from pounds to kilograms:

146.7 lb ÷ 2.20462 = 66.57 kg (rounded to the nearest hundredth)

Now, calculate the desired dose of metronidazole:

Desired dose = Dosage per kg × Weight Desired dose = 7.5 mg/kg × 66.57 kg Desired dose ≈ 498.775 mg

Next, find out how many tablets are needed to achieve this dose: Number of tablets = Desired dose / Strength per tablet

Number of tablets = 498.775 mg / 500 mg Number of tablets ≈ 0.997

Since we cannot administer a fraction of a tablet, the nurse should administer 1 tablet of metronidazole.

A. The total volume of the oral suspension is 250 mL. B. Store the medication in the refrigerator. C. The strength of the oral suspension is 125 mg/mL. D. Shake the bottle well before each use.

Correct Answer is D

Explanation

A. The total volume of the oral suspension is not documented on the drug.

B. The medication is to be stored at temperatures of 20 to 25 degree Celsius. The instructions also state that the drug is not to be frozen. These don’t require refrigeration.
C. The drug contains 125mg/ 5ml and not for every ml.

D. It has been clearly indicated on the drug that it is to be shaken well before use.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer metronidazole 7.5 mg/kg PO to a client who weighs 146.7 lb. Available is metronidazole 500 mg tablets. 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.)

Correct Answer is ["1 "]

Explanation

Which of the following statements about the drug below is true.

Correct Answer is D

Explanation

A nurse is preparing to administer filgrastim 480 mcg subcutaneous daily. Available is filgrastim injection 300 mcg/mL. How many mL should the nurse administer per dose? (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 reconstitute amoxicillin powder. According to the medication label, the nurse should identify that 5 mL contains how many mg of amoxicillin following reconstitution? (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 megestrol 800 mg PO. Available is megestrol suspension 40 mg/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 preparing to administer testosterone cypionate 125 mg IM. Available is testosterone cypionate injection 200 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer levothyroxine 0.05 mg PO to a client. Available is levothyroxine 25 mcg tablets. How many tablets should the nurse plan to 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 preparing to administer enoxaparin 1 mg/kg subcutaneous to a client who weighs 220 lb. Available is enoxaparin 30 mg/0.3 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.)