Which laboratory finding would be considered normal in labor?

• A. Increased WBC
• B. Decreased WBC
• C. Low platelets
• D. Anemia

Answer: (A)

During labor, the body’s stress and inflammatory response often cause a rise in white blood cells. This leukocytosis is a normal finding in this setting, reflecting the body's reaction to labor as well as demargination of neutrophils from blood vessel walls. The count can be higher than the nonpregnant range, commonly seen well into the tens of thousands, and may peak during active labor. Importantly, this increase by itself does not indicate infection unless accompanied by fever or other infection signs.

In contrast, a decrease in white cells, very low platelets, or anemia would not be considered normal in labor and would prompt further evaluation for potential complications or preexisting conditions.