A nurse is preparing to administer ceftriaxone 75 mg/kg/day IM in two divided doses to a child who weighs 37 lb. The amount available after reconstitution is ceftriaxone 350 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 ["1.8 "]

Given:

Desired dose of ceftriaxone: 75 mg/kg/day
Child's weight: 37 lb
Available strength of ceftriaxone after reconstitution: 350 mg/mL

First, convert the child's weight from pounds to kilograms: 37 lb ÷ 2.20462 = 16.78 kg (rounded to the nearest hundredth)

The total daily dose of ceftriaxone:

Total daily dose = Desired dose × Child's weight

Total daily dose = 75 mg/kg/day × 16.78 kg Total daily dose ≈ 1258.5 mg

Since the total daily dose is to be divided into two equal doses, each dose would be:

Each dose = Total daily dose / Number of doses per day Each dose = 1258.5 mg / 2

Each dose = 629.25 mg

The milliliters of ceftriaxone correspond to each dose:

Volume (mL) = Dose / Concentration

Volume (mL) = 629.25 mg / 350 mg/mL Volume (mL) ≈ 1.8 mL

So, the nurse should administer approximately 1.8 mL of ceftriaxone per dose.

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Free Nursing Study Resources

Correct Answer is D

Explanation

A. Chew the medication thoroughly. - Nitroglycerin tablets should not be chewed or swallowed.
B. Drink 8 oz of water with the medication. - Nitroglycerin tablets are typically taken sublingually (under the tongue) without water.
C. Take the medication with food. - Nitroglycerin is usually taken on an empty stomach to facilitate rapid absorption.
D. Place the medication under the tongue. - Correct. Nitroglycerin tablets are administered sublingually to facilitate rapid absorption into the bloodstream.

A. Kilogram B. Milliliter C. Pound D. Ounce

Correct Answer is A

Explanation

A. Kilogram - Correct. Kilogram is a metric unit of weight commonly used in healthcare settings to document weight.
B. Milliliter - Milliliter is a metric unit of volume, not weight.

C. Pound - Pound is not a metric unit; it's an imperial unit of weight.

D. Ounce - Ounce is also not a metric unit; it's an imperial unit of weight.

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Naxlex Comprehensive Predictor Exams

A nurse is reviewing a client's new prescription for nitroglycerin 0.4 mg SL every 3 to 5 min PRN for chest pain. The nurse should instruct the client to do which of the following?

Correct Answer is D

Explanation

A nurse is teaching an assistive personnel (AP) about documenting in a client's chart. Which of the following should the nurse instruct the AP to use when documenting a client's weight in metric units?

Correct Answer is A

Explanation

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