While changing a client's postoperative dressing, the nurse observes purulent drainage at the site. Before reporting this finding to the healthcare provider, the nurse should note which of the client's laboratory values?

Rationale: A. Platelet count: Platelets are primarily responsible for clotting, not infection response. While important for monitoring bleeding risk, they do not provide relevant information about infection or inflammation. B. Neutrophil count: Neutrophils are the primary white blood cells involved in fighting bacterial infections. An elevated neutrophil count (neutrophilia) supports the presence of infection, making this value essential to report alongside purulent drainage. C. Serum sodium level: Sodium levels reflect fluid and electrolyte balance but are not directly related to signs of infection or wound complications. This value is not the immediate priority in the context of purulent drainage. D. Hematocrit: Hematocrit indicates the proportion of red blood cells and is useful in evaluating anemia or fluid status, but it does not provide insight into infection or wound healing.