General Information

UPHSM LIS Test #: 027670
Testing Time: 2-4 Days
Testing Lab: Labcorp

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 2.0 mL
Temperature: Refrigerate
Tube Type: Serum or Plasma (Metal Free)
Collection Info:
Specimen: Plasma (preferred) or serum
Minimum Volume: 0.6 mL
Container: Royal blue-top (EDTA) tube or royal blue-top tube without EDTA
Collection: Separate serum from cells within 45 minutes of collection, and transfer to a certified metal-free transport tube (PeopleSoft N° 111166) for shipment to the laboratory. Plasma may be separated immediately and transferred to a certified metal-free plastic transport tube for shipment to the laboratory.

Specimen Acceptability

Cause for Rejection:
Certified metal-free plastic transport tube not submitted; unspun royal blue-top tube from which the plasma or serum has not been removed; gel-barrier tube


Inductively coupled plasma/mass spectrometry (ICP/MS)

Clinical Utilities

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's disease; confirm acrodermatitis enteropathica and follow therapy

Limitations:  Levels may be low in fever, sepsis, estrogen therapy, stress, or myocardial infarction, reflecting mobilization from serum to the liver by interleukin. Levels are usually low in uremia with normal tissue levels. Levels may be high in familial hyperzincemia without toxicity or high zinc stores.

CPT Codes


* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Reference Range