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A nurse is preparing to administer tobramycin 3 mg/kg/day IM in three divided doses to a client who weighs 85 kg. The amount available is Tobramycin 40 mg/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.)

Answer and Explanation

The Correct Answer is ["2.1"]

To calculate the amount of tobramycin that the nurse should administer per dose, we can use the following steps:

Calculate the total daily dosage required based on the client's weight and the prescribed dosage.

Determine the dosage per each of the three divided doses.

Calculate the volume of the drug needed for each dose using the concentration of the available tobramycin solution.

Given:

Client's weight = 85 kg

Prescribed dosage = 3 mg/kg/day

Available concentration of tobramycin = 40 mg/mL

Let's calculate step by step:

Calculate the total daily dosage required:

Total daily dosage = 3 mg/kg/day × 85 kg = 255 mg/day

Determine the dosage per each of the three divided doses:

Dosage per dose = Total daily dosage / 3 = 255 mg / 3 = 85 mg

Calculate the volume of the drug needed for each dose using the concentration of the available tobramycin solution:

Volume of drug per dose = Dosage per dose / Concentration of tobramycin

Volume of drug per dose = 85 mg / 40 mg/mL ≈ 2.1 mL

Rounding to the nearest tenth, the nurse should administer 2.1 mL of the tobramycin per dose.

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Free Nursing Study Resources

Correct Answer is ["5"]

Explanation

To calculate the amount of megestrol oral suspension that the nurse should administer, we can use the following formula:

Amount to administer (mL) = (Desired dose in mg) / (Amount of drug in 1 mL)

Given:

Desired dose = 200 mg

Amount of drug in 1 mL = 40 mg/mL

Now, let's calculate the amount to administer:

Amount to administer (mL) = 200 mg / 40 mg/mL

Amount to administer (mL) = 5 mL

Rounding to the nearest whole number, the nurse should administer 5 mL of the megestrol oral suspension.

Correct Answer is ["69"]

Explanation

To calculate the amount of voriconazole to be administered, we can follow these steps:

Convert the client's weight from pounds to kilograms.

Calculate the total amount of voriconazole needed based on the client's weight.

Determine the volume of the medication to be administered based on the concentration of the available solution.

Let's proceed with the calculations:

Converting the client's weight from pounds to kilograms:

Client's weight = 127 lb

1 lb ≈ 0.453592 kg

Client's weight ≈ 127 lb 0.453592 kg/lb ≈ 57.61 kg

Calculating the total amount of voriconazole needed:

Voriconazole dose = 6 mg/kg 57.61 kg ≈ 345.66 mg

Determining the volume of the medication to be administered:

Available voriconazole concentration = 5 mg/mL

Volume to be administered = 345.66 mg / 5 mg/mL ≈ 69.132 mL

Rounding to the nearest whole number, the nurse should administer 69 mL of voriconazole.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer megestrol 200 mg PO to a client. Available is megestrol oral 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.)

Correct Answer is ["5"]

Explanation

A nurse is preparing to administer voriconazole 6 mg/kg via intermittent IV bolus to a client who weighs 127 lb. Available is voriconazole 5 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.)

Correct Answer is ["69"]

Explanation

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