Absolute Reticulocyte Count = # or % retics * (Pt's Hct / Normal Hct)
Reticulocyte Index = Absolute Retic Ct / Maturation Factor

Maturation Factors:

• Hct ≥ 35%: 1.0
• 35% > Hct ≥ 25%: 1.5
• 25% > Hct ≥ 20%: 2.0
• 20% > Hct: 2.5

Retic Index > 2% = adequate response; < 2% = hypoproliferation

Posted in: Hematology • Hematology/Oncology