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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 A

Explanation

Choice A rationale:

Dissolving the medication in 30 mL of water is the correct action. This ensures that the medication is in a suitable form for administration via an NG tube and helps prevent the tube from becoming blocked.

Choice B rationale:

Maintaining the client in the supine position during medication administration is not recommended. This position increases the risk of aspiration. Instead, the client should be in an upright position during medication administration and for at least 30 minutes afterward.

Choice C rationale:

Adding the medication to the enteral feeding formula is not recommended. This can alter the effectiveness of the medication and can also clog the feeding tube.

Choice D rationale:

Flushing the tube with 5 mL of water after administering the medication is not enough. The tube should be flushed with at least 15-30 mL of water before and after medication administration to ensure that the entire dose has been administered and to prevent clogging of the tube.

Correct Answer is A

Explanation

Choice A rationale:

An apical pulse of 54/min is below the normal range for adults. Digoxin, a cardiac medication, can lower the heart rate. Therefore, it’s crucial to hold the medication if the resting pulse for an adult is less than 60 bpm. This is to prevent further lowering of the heart rate which could lead to bradycardia, a potentially dangerous condition.

Choice B rationale:

A respiratory rate of 14/min is within the normal adult range of 12-20 breaths per minute. This would not be a reason to withhold digoxin.

Choice C rationale:

A blood pressure (BP) of 179/89 mm Hg indicates hypertension, which is not a direct contraindication for digoxin. However, it’s important to monitor BP levels in clients taking digoxin as the medication can affect blood pressure.

Choice D rationale:

A temperature of 37.8° C (100° F) is slightly elevated but would not be a reason to withhold digoxin unless it’s indicative of an underlying infection that needs to be addressed first.

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