Which of the following cord blood values is considered out of normal range?

The normal range for white blood cell (WBC) counts in newborns is typically between 9,000 and 30,000/mm³. In this context, a value of 40,000/mm³ indicates a significant elevation in the WBC count, placing it outside the normal range. Such an elevated WBC count can signal various conditions, including infection, stress response, or other underlying medical issues that might warrant further investigation.

In lower ranges, like 15,000/mm³ and 20,000/mm³, the values fall within the normal limits and indicate no immediate cause for concern. Even the count of 30,000/mm³, while on the higher end, is still considered acceptable. It is the extreme elevation seen in the count of 40,000/mm³ that clearly identifies it as out of the normal range.