< 1 year: < or = 10 nmol/ml 1-17 years: < or = 20 nmol/ml > or = 18 years: < or = 15 nmol/ml
Collection/ Processing Details:
No preservative is necessary - random Collection. Patient should abstain from alcohol for 24 hours prior to and during collection. Patient age is required. Assistance in the differential diagnosis of the various porphyrias.
An indicator of lead intoxication in children.