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Blood Differential
Alternate Names : Differential, White Blood Cell Differential Count
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What do Abnormal Results Mean?
Any infection or acute stress results in increased production of WBCs. This usually entails an increased numbers of cells and an increase in the percent of immature cells (mainly band cells) in the blood. High WBC counts may indicate the presence of an inflammatory and immune response, or it may result from other conditions such as leukemia.
It is important to realize that an abnormal increase in one type of leukocyte can produce an apparent decrease in the percentage of other types.
An increased percentage of neutrophils may indicate:
A decreased percentage of neutrophils may indicate:
An increased percentage of lymphocytes (lymphocytosis) may indicate:
A decreased percentage of lymphocytes may indicate:
An increased percentage of monocytes may indicate:
- Chronic inflammatory disease
- Parasitic infection
- Tuberculosis
- Viral infection (for example, infectious mononucleosis, mumps, measles)
An increased percentage of eosinophils may indicate:
A decreased percentage of basophils may indicate an acute allergic reaction. This test may be performed under many other conditions as well.
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• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• How will the Test Feel?
• Normal Values
• What do Abnormal Results Mean?
• Special Considerations
• Risks
• Pictures & Images
Topics that might be of interest to you Diseases & Conditions
• Acute Gouty Arthritis
• Acute Lymphocytic Leukemia
• Anemia
• Chronic Myelogenous Leukemia (CML)
• Chronic Thyroiditis (Hashimoto's Disease)
• Eclampsia
• Hemolytic Anemia
• Hepatitis
• HIV Infection
• Hodgkin's Lymphoma
• Measles
• Mononucleosis
• Multiple Myeloma
• Mumps
• Pulmonary Tuberculosis
• Rheumatic Fever
• Rheumatoid Arthritis
• Sepsis
• The Flu
Tests & Exams
• Blood Pressure
• CBC
• Eosinophil Count - Absolute
• Venipuncture
• WBC Count
Other Topics
• Acute
• Adolescent Test or Procedure Preparation
• Allergic Reactions
• Antibody
• Bleeding
• Chemotherapy
• Chronic
• Fainting
• Immune Response
• Infant Test/Procedure Preparation
• Preschooler Test/Procedure Preparation
• Protein in Diet
• Radiation Therapy
• School Age Test/Procedure Preparation
• Toddler Test/Procedure Preparation
• Vasoconstriction
Review Date : 5/8/2003
Reviewed By : Marcia S. Brose, M.D., Ph.D., Division of Hematology/Oncology, Hospital of the University of Pennsylvania, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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