The recommended dosage of kanamycin is 
15 mg/kg/day q8h. The child weighs 25 kg. 
The amount for one dose is 

To determine the amount of one dose of kanamycin for a child weighing 25 kg, we need to follow these steps:

1. **Calculate the total daily dosage**:
   The recommended dosage is 15 mg/kg/day.
   \[
   \text{Total daily dosage} = 15 \, \text{mg/kg/day} \times 25 \, \text{kg} = 375 \, \text{mg/day}
   \]

2. **Determine the frequency of administration**:
   The medication is to be administered every 8 hours (q8h), which means 3 doses per day (since 24 hours/day ÷ 8 hours/dose = 3 doses/day).

3. **Calculate the amount for one dose**:
   \[
   \text{Amount per dose} = \frac{\text{Total daily dosage}}{\text{Number of doses per day}} = \frac{375 \, \text{mg/day}}{3 \, \text{doses/day}} = 125 \, \text{mg/dose}
   \]

Therefore, the amount for one dose of kanamycin for the child is **125 mg**.

Would you like more details or have any questions?

Here are some related questions to expand on this information:

1. What is the significance of the dosing interval (q8h) in medication administration?
2. How do you adjust the dosage if the dosing interval changes (e.g., q6h or q12h)?
3. What are the common side effects of kanamycin?
4. How does body weight influence drug dosing in pediatrics?
5. What precautions should be taken when administering antibiotics to children?
6. How can you ensure accurate dosing when calculating medication for pediatric patients?
7. What are the potential consequences of incorrect dosing in pediatric patients?
8. How is the dosing of kanamycin different from other antibiotics?

**Tip:** When calculating dosages for medications with specific intervals, always ensure that the total daily dosage is appropriately divided by the number of doses per day to maintain consistent therapeutic levels.

Learn how to calculate the dosage of kanamycin for a child weighing 25 kg with a detailed step-by-step solution. This problem involves dosage calculation based on body weight and prescribed dosage per kilogram. Suitable for professionals in medical and pharmaceutical fields.

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