Inflammation and repair · USMLE Step 1

Which cell type is the predominant leukocyte in the first 24 hours of acute inflammation?

  1. Lymphocytes
  2. Eosinophils
  3. Neutrophils
  4. Plasma cells
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Correct answer: Neutrophils

Neutrophils are the first responders and predominate in the initial phase of acute inflammation, especially within the first 24–48 hours.

Difficulty: Medium Question 3 of 22

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