A child who weighs 55 pounds receives a prescription for isoniazid 10 mg/kg/day by mouth (PO) once a day.
The bottle is labeled, “Isoniazid Oral Solution, USP 50 mg per 5 mL.”. How many mL should the nurse administer? . .
The Correct Answer is ["25"]
Answer and explanation
Step 1 is to convert the child’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.2 lbs. So, the child’s weight in kg is 55 lbs ÷ 2.2 = 25 kg (rounded to the nearest whole number for simplicity).
Step 2 is to calculate the total daily dosage. The prescription is for isoniazid 10 mg/kg/day. So, the total daily dosage in mg is 10 mg/kg/day × 25 kg = 250 mg/day.
Step 3 is to calculate the volume of the oral solution to administer. The bottle is labeled, “Isoniazid Oral Solution, USP 50 mg per 5 mL.”. So, the volume in mL to administer is (250 mg/day ÷ 50 mg) × 5 mL = 25 mL. Therefore, the nurse should administer 25 mL of the Isoniazid Oral Solution, USP 50 mg per 5 mL, once a day.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Keeping the skin incision moist by periodically wetting the dressing is not the recommended care for a myelomeningocele surgical repair. The dressing needs to be kept dry to prevent infection and promote healing.
Choice B rationale
Removing the tape rapidly from the edges of the dressing during a change is not advised. This could potentially damage the skin and disrupt the healing process.
Choice C rationale
An intact dressing protects the incision from fecal contamination, which is crucial in preventing infection. This statement indicates an understanding of the procedure.
Choice D rationale
While it’s important to keep the dressing dry to ensure easy removal of sutures, it’s not the primary concern. The main goal is to protect the incision from contamination.
Correct Answer is C
Explanation
Choice A rationale
Keeping plastic bags of ice in the freezer is not specifically indicative of successful management of hemophilia. While ice can be used to manage acute joint bleeds, it does not reflect the overall management of the condition.
Choice B rationale
Wearing extra pads when playing football could indicate an awareness of the risk of injury, but it does not necessarily reflect successful management of hemophilia. In fact, contact sports like football are generally not recommended for individuals with hemophilia due to the risk of bleeding.
Choice C rationale
Serving as a counselor at a camp for hemophiliacs could indicate successful management of hemophilia. It suggests that the individual has not only learned to manage their own condition, but is also able to provide guidance and support to others with the same condition.
Choice D rationale
Chewing food slowly to prevent injury to the gums is a precautionary measure, but it does not necessarily indicate successful management of hemophilia.
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