A nurse is preparing to administer a dexamethasone 1.5 mg/kg/day PO to divide equally every 6 hr to a preschool-age child who weighs 22 lb. Available is dexamethasone oral solution 1 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 ["3.8"]
Convert the child’s weight to kg:
22 lb ×1kg/2.2lb = 10 kg
Calculate the daily dose:
1.5 mg/kg/day × 10 kg=15mg/day
Divide the total daily dose by the number of doses per day (every 6 hours):
15mg/day ÷ 4doses/day =3.75mg/dose
Convert the dose to mL using the concentration:
3.75mg × 1 mL/1 mg = 3.75 mL
Round to the nearest tenth:
3.75 mL≈ 3.8 mL
Answer: The nurse should administer 3.8 mL per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Ask the child what he knows about the procedure. Understanding the child’s knowledge and feelings about the procedure helps tailor the explanation to address any misconceptions and reduce anxiety. This is the first step in providing appropriate and effective education.
B. Allow the child to see and touch IV tubing and supplies. Familiarizing the child with the equipment can reduce fear, but it is better to first assess what the child knows and address any concerns or fears before showing the supplies.
C. Describe the procedure using visual aids. Using visual aids to explain the procedure is helpful, but it should follow assessing the child’s current understanding to ensure the explanation is appropriate and comprehensive.
D. Explain to the child's parents what role they will have during the procedure. Involving the parents and explaining their role is important, but the child’s understanding and comfort should be addressed first to ensure they are calm and prepared for the procedure.
Correct Answer is C
Explanation
A. Sodium 142 mEq/L: This is within the normal range for sodium (135-145 mEq/L) and does not indicate a problem that needs immediate attention.
B. Urine specific gravity 1.025: This value is on the higher end of the normal range for urine specific gravity (1.010-1.030) and indicates concentration of urine, which can occur in mild dehydration. It is not critical but indicates the need for monitoring.
C. Potassium 2.5 mEq/L: This is below the normal range for potassium (3.5-5.0 mEq/L) and indicates hypokalemia, which can cause serious cardiac issues and muscle weakness. It is a priority to correct this imbalance to prevent complications.
D. Blood glucose 110 mg/dL: This is within the normal range for blood glucose levels (70-110 mg/dL) for children and does not indicate an immediate concern related to dehydration.
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