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URL of this page: //medlineplus.gov/ency/presentations/100152.htm

Complete blood count - series—Results, part 2

Results, part 2

Overview

High numbers of red blood cells may indicate:

  • Cigarette smoking
  • Low oxygen tension in the blood
  • Congenital heart disease
  • Cor pulmonale
  • Pulmonary fibrosis
  • Polycythemia vera
  • Dehydration (such as from severe diarrhea)
  • Emphysema

Review Date 10/14/2024

Updated by: Warren Brenner, MD, Oncologist, Lynn Cancer Institute, Boca Raton, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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