Reference Ranges
  mcg/dL umol/L
Newborn:  100-250  [17.9-44.8]
Infant: 40-100  [7.2-17.9]
Child:  50-120  [9.0-21.5]
Adult    
M:  65-175  [11.6-31.3]
F:  50-170  [9.0-30.4]
Intoxicated child: 280-2550  [50.1-456.5]
Fatally poisoned child:  1800  [322.2]