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.).
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.
- 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
- 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
- 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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Naxlex Comprehensive Predictor Exams
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Explanation
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Aspiration (pulling back on the syringe before injection) is not recommended when administering enoxaparin. This could cause bruising.
Choice Brationale:
You should not massage the site following the injection as this could cause bruising.
Choice Crationale:
With enoxaparin and other low molecular weight heparins, you do not need to expel the air bubble before injecting the medication. The air bubble ensures that all the medication is delivered.
Choice D rationale:
Enoxaparin should be injected into abdominal tissue. This helps ensure proper absorption and reduces the risk of bruising.
Correct Answer is A
Explanation
Choice A rationale:
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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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