A nurse is preparing to administer methylprednisolone 7 mg/kg/day IM in two divided doses to a school-age child who weighs 64 lb. Available is methylprednisolone 20 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.)
The Correct Answer is ["5.1"]
To calculate the correct dose of methylprednisolone, we need to follow these steps:
-
Convert pounds to kilograms:
- 64 lb * 0.4536 kg/lb = 29 kg
-
Calculate the daily dose in milligrams:
- 7 mg/kg/day * 29 kg = 203 mg/day
-
Calculate the dose per administration:
- Since the medication is divided into two doses, divide the daily dose by 2:
- 203 mg/day / 2 = 101.5 mg/dose
- Since the medication is divided into two doses, divide the daily dose by 2:
-
Determine the volume needed from the available concentration:
- 101.5 mg * (1 mL / 20 mg) = 5.075 mL
Therefore, the nurse should administer 5.1 mL of methylprednisolone per dose.
Answer: 5.1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.8"]
Explanation
1. Convert client's weight to kilograms (kg):
Weight (kg) = 154 lb x 0.453592 kg/lb (conversion factor)
Weight (kg) ≈ 70.31 kg (rounded to two decimal places)
2. Calculate the total gentamicin dosage:
Dosage (mg/kg) = 1 mg/kg (given)
Weight (kg) = 70.31 kg (calculated)
Total dosage (mg) = Dosage (mg/kg) x Weight (kg)
Total dosage (mg) = 1 mg/kg x 70.31 kg
Total dosage (mg) ≈ 70.31 mg (rounded to two decimal places)
3. Determine the volume to administer based on medication concentration:
Concentration (mg/mL) = 40 mg/mL (available gentamicin solution)
Total dosage (mg) = 70.31 mg (calculated)
Volume (mL) = Dosage (mg) / Concentration (mg/mL)
Volume (mL) = 70.31 mg / 40 mg/mL
4. Round the answer to the nearest tenth:
Volume to administer ≈ 1.76 mL (rounded to two decimal places)
Therefore, the nurse should administer approximately 1.8 mL of gentamicin solution.
Correct Answer is C
Explanation
A) mL: This abbreviation stands for milliliters, which is a metric unit of volume used to measure liquids. It is not a unit of weight, so it would not be identified as such when documenting in the medical record.
B) OZ: This abbreviation stands for ounces, which is a unit of weight used in the imperial system, not the metric system. It is important to distinguish between metric and imperial units for accurate documentation.
C) Mcg: This abbreviation stands for micrograms, which is a metric unit of weight. Micrograms are commonly used in the medical field to measure very small amounts of substances, such as medications. Recognizing this as a metric unit of weight is crucial for proper documentation.
D) Lb: This abbreviation stands for pounds, which is another unit of weight used in the imperial system. It is not a metric unit, so it should not be identified as such in the medical record.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.