Specimen Requirements


Zinc, Serum or Plasma

Specimen Requirement

Collect royal blue EDTA or royal blue no additive, centrifuge within 45 minutes, pipette 2 mL serum/plasma into a screw top transport tube, indicate sample type on tube and send.


Inductively coupled plasma/mass spectrometry (ICP/MS)


Room temp: 14 days, Refrigerated: 14 days, Frozen: 14 days

Reference Range

By report*


2-4 days

Clinical Use

Monitor exposure to zinc; evaluate suspected nutritional inadequacy, especially in enteral or parental nutrition, critically ill or burn patients; cases of diabetes or delayed wound healing; growth retardation; follow therapy, for example when higher intravenous zinc doses are used to balance excessive ongoing GI losses in long-term total parenteral nutrition; follow oral zinc therapy in Wilson disease; confirm acrodermatitis enteropathica and follow therapy

Test Code