Leukopenia

Definition

Leukopenia is a condition characterized by an abnormally low number of white blood cells (leukocytes) in the blood, which can increase susceptibility to infections. It is often a result of viral infections impacting the circulatory and lymphatic systems.

5 Must Know Facts For Your Next Test

1. Leukopenia can be caused by viral infections such as HIV, Epstein-Barr virus, and cytomegalovirus.
2. A low white blood cell count can make individuals more susceptible to bacterial and fungal infections.
3. Common symptoms include frequent infections, fever, and fatigue.
4. Diagnosis is typically made through a complete blood count (CBC) test.
5. Treatment may involve addressing the underlying cause and possibly administering growth factors to stimulate white blood cell production.

Review Questions

• What are some common viral causes of leukopenia?
• How does leukopenia affect an individual's immune system?
• What diagnostic test is commonly used to identify leukopenia?

Related terms

Lymphocytopenia: A condition where there is an abnormally low level of lymphocytes in the blood.

Neutropenia: A condition characterized by a lower than normal number of neutrophils, a type of white blood cell.

Hematopoiesis: The process of forming new blood cellular components in the bone marrow.