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?

Choice A rationale:

Serum sodium level. Rationale: While electrolyte imbalances can be significant, in the context of purulent drainage at a postoperative site, monitoring serum sodium levels is not the top priority. Other laboratory values are more relevant in this situation.

Choice B rationale:

Hematocrit. Rationale: Hematocrit measures the proportion of red blood cells in the blood and is not directly related to wound drainage or infection. It is not the most relevant parameter to assess in this situation.

Choice C rationale:

Neutrophil count. Rationale: Neutrophils are a type of white blood cell that plays a key role in the body's immune response, particularly against bacterial infections. Elevated neutrophil counts can indicate an ongoing infection, so monitoring this value is important when assessing purulent wound drainage.

Choice D rationale:

Platelet count. Rationale: Platelet count measures the number of blood clotting cells in the blood and is not directly related to wound drainage or infection. It is not the most relevant parameter to assess in this situation.