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 to administer per dose, you need to follow these steps:

Step 1: Calculate the total daily dose. Total Daily Dose (mg) = Weight (kg) x Dose (mg/kg/day)

Total Daily Dose (mg) = 85 kg x 3 mg/kg/day = 255 mg/day

Step 2: Calculate the dose per divided dose (three divided doses). Dose per Divided Dose (mg) = Total Daily Dose (mg) / Number of Divided Doses

Dose per Divided Dose (mg) = 255 mg / 3 doses = 85 mg/dose

Step 3: Convert the dose to mL using the concentration. Dose (mL) = Dose (mg) / Concentration (mg/mL)

Dose (mL) = 85 mg / 40 mg/mL ≈ 2.125 mL

Rounded to the nearest tenth, the nurse should administer 2.1 mL per dose.

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Free Nursing Study Resources

Correct Answer is ["0.04"]

Explanation

To calculate the volume of exenatide to administer, you can use the following formula:

Volume (mL) = (Desired Dose in mcg) / (Concentration in mcg/mL)

In this case, the desired dose is 10 mcg, and the concentration is 250 mcg/mL. Plugging these values into the formula:

Volume (mL) = 10 mcg / 250 mcg/mL = 0.04 mL

Rounded to the nearest hundredth, the nurse should administer approximately 0.04 mL of exenatide.

Correct Answer is ["0.5"]

Explanation

To calculate the volume (mL) needed to administer 25 mg of promethazine using a concentration of 50 mg/mL, you can use the following formula:

Volume (mL) = Dose (mg) / Concentration (mg/mL)

In this case, the dose is 25 mg, and the concentration is 50 mg/mL:

Volume (mL) = 25 mg / 50 mg/mL = 0.5 mL

So, the nurse should administer 0.5 mL of promethazine.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer exenatide 10 mcg subcutaneous. Available is exenatide 250 mcg/mL. How many ml. should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.04"]

Explanation

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

Correct Answer is ["0.5"]

Explanation

A nurse is preparing to administer 0.9% sodium chloride 1,500 mL. IV to be infused over 12 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 0.9% sodium chloride 1,200 ml. IV to infuse over 8 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 calcitonin 8 units/kg IM to a client who weighs 130 lb. Available is calcitonin 200 units/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.)

A nurse is preparing to administer fentanyl 0.5 mcg/kg via IV bolus to a client who weighs 187 lb. Available is fentanyl 50 mcg/ml. How many mi should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)