Patient characteristic	Normal total leukocyte count
Newborn infant	13,000 to 38,000 per mm3 (13.0 to 38.0 × 109 per L)
Infant two weeks of age	5,000 to 20,000 per mm3 (5.0 to 20.0 × 109 per L)
Adult	4,500 to 11,000 per mm3 (4.5 to 11.0 × 109 per L)
Pregnant female (third trimester)	5,800 to 13,200 per mm3 (5.8 to 13.2 × 109 per L)