Preschool Screening for Iron Deficiency Anemia
Screening Strategy
- The Centers for Disease Control and Prevention recommends screening all children annually from ages 2 to 5 years if they are from low-income families, WIC-eligible, migrant populations, or recently arrived refugees 1, 2, 3
- Initial screening should have occurred at 9-12 months, with repeat at 15-18 months, before entering the annual preschool screening phase 1, 2
- Screen only children with documented risk factors, such as low-iron diet, excessive milk intake, poverty, or special healthcare needs, rather than universal screening 1, 2, 3
Diagnostic Approach
- Repeat hemoglobin or hematocrit to confirm positive screening before initiating treatment 1, 2, 4
- If both tests agree and the child is not acutely ill, make a presumptive diagnosis of IDA and begin treatment 1, 2
Treatment Protocol
- Prescribe 3 mg/kg per day of elemental iron administered between meals 1, 2, 4, 5
- Provide dietary counseling addressing the underlying low iron intake, including limiting milk to maximum 24 oz daily 1, 2, 4, 5
Response Assessment
- Repeat Hb/Hct after 4 weeks of treatment to assess response 1, 2, 4
- An increase of ≥1 g/dL in Hb or ≥3% in Hct confirms IDA diagnosis 1, 2, 4, 5