# AI calculates IV pump rate for dopamine infusion using adult weight-based dosing for a neonate, leading to potential overdose

- **ID:** `medical/iv-pump-rate-calculation-error-neonatal`
- **Domain:** medical
- **Category:** data_error
- **Error Code:** `DOPAMINE_NEONATAL_DOSE_ERR`
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

Dopamine infusion rates for neonates require weight-based dosing in mcg/kg/min, but AI incorrectly applies adult fixed-rate calculations (e.g., 5-20 mcg/kg/min for adults vs. 2-10 mcg/kg/min for neonates), leading to a twofold or greater overdose risk.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| dopamine IV 40 mg/mL concentrate | active | — | — |
| neonatal infusion pump (Alaris 8015) | active | — | — |
| weight-based dosing protocol v2.3 | active | — | — |

## Workarounds

1. **Use the neonatal dopamine infusion calculator: dose (mcg/kg/min) × weight (kg) × 60 (min/hr) ÷ concentration (mcg/mL) = rate (mL/hr). For a 3 kg neonate requiring 5 mcg/kg/min from a 1600 mcg/mL solution (40 mg in 25 mL D5W), rate = 5 × 3 × 60 / 1600 = 0.56 mL/hr.** (92% success)
   ```
   Use the neonatal dopamine infusion calculator: dose (mcg/kg/min) × weight (kg) × 60 (min/hr) ÷ concentration (mcg/mL) = rate (mL/hr). For a 3 kg neonate requiring 5 mcg/kg/min from a 1600 mcg/mL solution (40 mg in 25 mL D5W), rate = 5 × 3 × 60 / 1600 = 0.56 mL/hr.
   ```
2. **Verify with a second calculator (e.g., PediTools or NICU dose calculator) before programming the pump.** (98% success)
   ```
   Verify with a second calculator (e.g., PediTools or NICU dose calculator) before programming the pump.
   ```
3. **Use a standardized neonatal dopamine infusion protocol with pre-calculated tables for common weights (1-5 kg) and desired doses.** (95% success)
   ```
   Use a standardized neonatal dopamine infusion protocol with pre-calculated tables for common weights (1-5 kg) and desired doses.
   ```

## Dead Ends

- **** — Adult nomograms assume higher baseline blood pressure and different receptor sensitivity; applying them to neonates can cause hypertension, tachycardia, and extravasation injury. (85% fail)
- **** — Neonates lose weight after birth and then regain; using birth weight leads to underdosing or overdosing depending on day of life. (65% fail)
- **** — Fixed rate without concentration adjustment ignores the required mcg/kg/min target, leading to therapeutic failure or toxicity. (75% fail)