Physiological Anemia

Physiological Anemia

→ The ↑ in plasma volume (30-40%) is much more than the ↑ in red cell mass (10-15%) leading to hemodilution and an apparent ↓ in Hb level called as physiological anemia of pregnancy.

→ This hemodilution during pregnancy serves to reduce maternal blood viscosity, thereby enhancing placental perfusion and facilitating nutrient and oxygen delivery to the fetus.

→ Characteristics of physiological anemia:

  1. Starts at 7th – 8th weeks
  2. Maximum by 32 weeks
  3. Does not go below 11 gm%

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