On CBC in rheumatology, which finding may indicate immune activity against the body's tissues?

On CBC in rheumatology, which finding may indicate immune activity against the body's tissues?

• A. Increased White Blood Cells
• B. Decreased White Blood Cells
• C. White Blood Cell count may be increased or decreased
• D. Normal White Blood Cells

Answer: (C)

Inflammatory and immune processes in rheumatic diseases can alter the white blood cell count in either direction. Active immune activity and inflammation often raise WBCs as cytokines stimulate production, leading to leukocytosis. Conversely, autoimmune destruction of cells, bone marrow suppression from immunosuppressive therapies, or increased sequestration in the spleen can lower WBCs, causing leukopenia. Because immune activity against the body's tissues can manifest with either an elevated or a reduced WBC count depending on the context, the finding may be increased or decreased. A normal WBC doesn’t specifically indicate lack of immune activity in these conditions.

Inflammatory and immune processes in rheumatic diseases can alter the white blood cell count in either direction. Active immune activity and inflammation often raise WBCs as cytokines stimulate production, leading to leukocytosis. Conversely, autoimmune destruction of cells, bone marrow suppression from immunosuppressive therapies, or increased sequestration in the spleen can lower WBCs, causing leukopenia. Because immune activity against the body's tissues can manifest with either an elevated or a reduced WBC count depending on the context, the finding may be increased or decreased. A normal WBC doesn’t specifically indicate lack of immune activity in these conditions.