With urinary tract infections, which white blood cell type is most frequently seen in urine sediment?

With urinary tract infections, which white blood cell type is most frequently seen in urine sediment?

• A. Eosinophil
• B. Lymphocyte
• C. Monocyte
• D. Neutrophil

Answer: (D)

In UTIs, the inflammatory response to bacteria is driven mainly by neutrophils. These white blood cells are the body’s first responders to bacterial infection, migrating into the urinary tract to phagocytose bacteria. That’s why urine sediment from an acute UTI typically shows pyuria with neutrophils as the predominant cell type. Eosinophils are more associated with allergic reactions or certain drug-related kidney conditions; lymphocytes and monocytes can be present in urinary inflammation but are not the characteristic dominant cells in acute bacterial infections. So neutrophils best explain the common finding in urine sediment during UTIs.

In UTIs, the inflammatory response to bacteria is driven mainly by neutrophils. These white blood cells are the body’s first responders to bacterial infection, migrating into the urinary tract to phagocytose bacteria. That’s why urine sediment from an acute UTI typically shows pyuria with neutrophils as the predominant cell type.

Eosinophils are more associated with allergic reactions or certain drug-related kidney conditions; lymphocytes and monocytes can be present in urinary inflammation but are not the characteristic dominant cells in acute bacterial infections. So neutrophils best explain the common finding in urine sediment during UTIs.