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The provided image gives information about the calculation of a child's safe dose of Phenytoin.

Here's the breakdown of the problem:

1. **Ordered dose**: Phenytoin 175 mg PO daily.
2. **On hand**: Phenytoin oral suspension 125 mg per 5 mL.
3. **SDR (Safe Dosage Range) for child**: 250-300 mg per m².
4. **Child's BSA (Body Surface Area)**: 0.7 m².

### Steps to solve:
1. **Calculate the safe dose based on the child's BSA**:
   - Use the SDR of 250–300 mg per m² and the child's BSA to find the safe dose range.
   - Minimum safe dose: \( 250 \, \text{mg/m²} \times 0.7 \, \text{m²} = 175 \, \text{mg} \).
   - Maximum safe dose: \( 300 \, \text{mg/m²} \times 0.7 \, \text{m²} = 210 \, \text{mg} \).

   The safe dose for the child is therefore between **175 mg and 210 mg**.

2. **Verify if the ordered dose is safe**:
   - The ordered dose is 175 mg.
   - Since 175 mg is within the safe range (175–210 mg), the ordered dose is safe.

3. **Calculate the volume of the medication to give**:
   - On hand, you have a concentration of 125 mg per 5 mL.
   - To calculate the volume for a 175 mg dose:  
     \[
     \text{Volume to give} = \left( \frac{175 \, \text{mg}}{125 \, \text{mg}} \right) \times 5 \, \text{mL} = 7 \, \text{mL}.
     \]

### Final answers:
- **Safe dose for the child**: 175–210 mg.
- **Volume to administer**: 7 mL.

Let me know if you want more details or have any questions.

Here are 5 related questions to think about:
1. How do you calculate body surface area (BSA) for a child?
2. Why is it important to check the safe dosage range for medications in pediatrics?
3. What could be the consequences of exceeding the safe dosage range?
4. How do you adjust doses when the BSA changes?
5. What is the role of concentration in calculating the correct medication volume?

**Tip**: Always double-check medication orders for pediatric patients, as their dosages vary significantly based on weight and body surface area!

What is the Safe Dose for the child, and how many mL will you give if the dose is safe?

Learn how to calculate the safe dose of Phenytoin for a child with BSA of 0.7 m² and ordered dose of 175 mg, based on a concentration of 125 mg per 5 mL.

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