Neutropenia

Overview :

The normal level of neutrophils in human blood varies slightly by age and race. Infants have lower counts than older children and adults, and African Americans have lower counts than Caucasians or Asians. The average adult level is 1500 cells/mm3 of blood. Neutrophil counts (in cells/mm3) are interpreted as follows:

• greater than 1000. Normal protection against infection
• 500-1000. Some increased risk of infection
• 200-500. Great risk of severe infection
• lower than 200. Risk of overwhelming infection; requires hospital treatment with antibiotics
  
  

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