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A nurse is preparing to administer amikacin 5 mg/kg IM to a client who weighs 110 lb. Available is amikacin injection 250 mg/mL. How many mL should the nurse administer?

(Round the answer to the nearest whole number. Use a leading zero if applicable. Do not use a trailing zero.).
Answer and Explanation

The Correct Answer is ["1"]

To solve this problem, we first need to convert the client’s weight from pounds to kilograms. Then, we can calculate the total amount of amikacin needed. Finally, we can find out how many milliliters of amikacin injection the nurse should administer.

  1. Convert the client’s weight to kilograms: Given that 1 kg = 2.2 lbs, we can calculate the client’s weight in kilograms as follows:

Weight in kg=Weight in lbsConversion factor=110 lbs2.2 lbs/kg≈50 kgWeight in kg=Conversion factorWeight in lbs​=2.2 lbs/kg110 lbs​≈50 kg

  1. Calculate the total amount of amikacin needed: The doctor ordered 5 mg of amikacin per kg of body weight, so the total amount of amikacin needed is:

Total amikacin=Dose per kg×Weight in kg=5 mg/kg×50 kg=250 mgTotal amikacin=Dose per kg×Weight in kg=5 mg/kg×50 kg=250 mg

  1. Find out how many milliliters of amikacin injection the nurse should administer: Given that the available amikacin injection is 250 mg/mL, we can calculate the volume of injection needed as follows:

Volume of injection=Total amikacinConcentration of injection=250 mg250 mg/mL=1 mLVolume of injection=Concentration of injectionTotal amikacin​=250 mg/mL250 mg​=1 mL

So, the nurse should administer 1 mL of amikacin injection.


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Related Questions

Correct Answer is D

Explanation

Choice A rationale:

Consulting a pharmaceutical sales representative is not the best option. While they are knowledgeable about the medications they promote, their primary role is to market their company’s products, and they may not have comprehensive information about other medications.

Choice B rationale:

While a nursing team member can be a valuable resource, they may not have the specific knowledge about the medication in question. It’s also important to remember that medication information can change frequently, and relying on another person’s knowledge may lead to errors.

Choice C rationale:

The client’s family can provide useful information about how the client has been taking the medication at home, but they are unlikely to have detailed pharmacological knowledge about the medication.

Choice D rationale:

A nursing drug guide is a reliable and up-to-date resource that provides comprehensive information about medications, including indications, contraindications, dosages, potential side effects, and interactions. Therefore, when unfamiliar with a medication, the nurse should consult a nursing drug guide.

Correct Answer is A

Explanation

Choice A rationale:

Hoarseness of voice can be a symptom of an allergic reaction, indicating swelling and inflammation in the throat. If the client’s voice is no longer hoarse after taking diphenhydramine, it suggests that the medication has been effective in reducing this symptom.

Choice B rationale:

Diphenhydramine is an antihistamine and can often cause drowsiness as a side effect. Therefore, feeling more alert would not typically indicate that the medication has been effective.

Choice C rationale:

While headaches can sometimes be associated with allergic reactions, they are not a primary symptom that diphenhydramine targets. Therefore, absence of a headache does not necessarily indicate effectiveness of the medication.

Choice D rationale:

Increased appetite is not typically associated with the effectiveness of diphenhydramine in treating allergic reactions.

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