Erythromycin 750 mg po BID is ordered for a child weighing 44 lb. The recommended dose of Erythromycin is 30-50mg/kg/day.

To check whether the ordered dose of **Erythromycin 750 mg PO BID** is within the recommended range for a child weighing 44 lb, let's follow these steps:

1. **Convert the child's weight to kilograms**:
   \[
   44 \, \text{lb} \times \frac{1 \, \text{kg}}{2.2 \, \text{lb}} = 20 \, \text{kg}
   \]

2. **Calculate the recommended dose range**:
   The recommended dose is **30-50 mg/kg/day**. Therefore, for a child weighing 20 kg:
   - Minimum daily dose: 
     \[
     30 \, \text{mg/kg/day} \times 20 \, \text{kg} = 600 \, \text{mg/day}
     \]
   - Maximum daily dose:
     \[
     50 \, \text{mg/kg/day} \times 20 \, \text{kg} = 1000 \, \text{mg/day}
     \]

3. **Check the ordered dose**:
   The ordered dose is **750 mg PO BID**, which means the child is receiving:
   \[
   750 \, \text{mg} \times 2 = 1500 \, \text{mg/day}
   \]

4. **Comparison**:
   - The prescribed daily dose is **1500 mg/day**.
   - The recommended daily dose range is **600-1000 mg/day**.

Since **1500 mg/day** exceeds the upper limit of the recommended range (**1000 mg/day**), the ordered dose is higher than the recommended dose.

### Would you like more details or have any questions?

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Here are 5 related questions to consider:
1. What are the potential side effects of overdosing on Erythromycin in children?
2. How would you adjust the dose if the child's weight changes?
3. Are there alternative antibiotics with similar dosage guidelines for children?
4. How often should the dose be monitored and adjusted for pediatric patients?
5. What factors might justify prescribing a dose higher than the recommended range?

**Tip:** Always double-check pediatric dosing with the recommended guidelines, especially when converting from pounds to kilograms.

This page provides a detailed solution for calculating whether the prescribed dose of Erythromycin 750 mg BID is within the recommended range for a child weighing 44 lb. It covers key concepts such as unit conversion, pediatric dosage ranges, and range comparisons. The recommended dose range is 30-50 mg/kg/day.

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