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A nurse is preparing to administer hydrocortisone 150 mg via IV bolus. Available is hydrocortisone 50 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.)
Answer and Explanation

The Correct Answer is ["3"]

To calculate the amount of hydrocortisone to administer, we can use the following formula:

Amount to administer (mL) = (Desired dose (mg) / Available dose (mg/mL))

Plugging in the given values:

Amount to administer (mL) = (150 mg / 50 mg/mL)

Now, let's solve for the amount to administer:

Amount to administer (mL) = (150 / 50) = 3 mL

So, the nurse should administer 3 mL of hydrocortisone via IV bolus.


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Related Questions

Correct Answer is ["2"]

Explanation

To calculate the amount of ampicillin the nurse should administer per dose in milliliters (mL) for a 500 mg IM dose, we can use the following steps:

Given:

Ampicillin dose: 500 mg

Available concentration after reconstitution: 250 mg/mL

Volume of sterile water to be added: 1.8 mL

Step 1: Calculate the amount of ampicillin to be administered per dose in mL

First, we need to reconstitute the ampicillin vial to yield the desired concentration of 250 mg/mL.

The concentration after reconstitution is 250 mg/mL, and the total dose required is 500 mg. Therefore, the nurse needs to administer:

Volume = Ampicillin dose / Concentration

Volume = 500 mg / 250 mg/mL

Volume = 2 mL

Rounding to the nearest whole number:

Volume = 2 mL

Therefore, the nurse should administer 2 mL of the reconstituted ampicillin solution per dose.

Correct Answer is ["2.1"]

Explanation

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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