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Complete blood count - series—Results, part 1

Results, part 1

Overview

Results:

Normal values vary with altitude and gender.

What abnormal results may mean:

Low numbers of red blood cells may indicate anemia, which has many causes including:

  • Blood loss
  • Iron deficiency
  • Deficiences of vitamin B12 or folic acid
  • Bone marrow failure (for example, from radiation, toxin, fibrosis, tumor)
  • Erythropoietin deficiency (secondary to kidney disease)
  • Hemolysis (RBC destruction)
  • Leukemia
  • Multiple myeloma
  • Over hydration

Low numbers of white blood cells (leukopenia) may indicate:

  • Bone marrow failure (for example, due to granuloma (granular tumor), tumor, or fibrosis)
  • Presence of cytotoxic substance
  • Collagen-vascular diseases (such as lupus erythematosus)
  • Disease of the liver or spleen
  • Radiation exposure

High numbers of white blood cells (leukocytosis) may indicate:

  • Infectious diseases
  • Inflammatory disease (such as rheumatoid arthritis or allergy)
  • Leukemia
  • Severe emotional or physical stress
  • Tissue damage (for example, burns)

A high hematocrit may indicate:

  • Dehydration
  • Burns
  • Diarrhea
  • Eclampsia
  • Erythrocytosis
  • Polycythemia vera
  • Shock

Review Date 11/10/2016

Updated by: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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