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Regional Medical Lab
Test Directory


Zinc, Serum or Plasma

Order Name ZINC
Test Number: 3603800
Revision Date 05/20/2019
Test Name Methodology LOINC Code
Zinc, Serum or Plasma
Inductively-Coupled Plasma/Mass Spectrometry  
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2 mL (0.5) Serum Royal Blue - No Additive Clot (Trace Element Free) Ambient / Refrigerated
Alternate 1 2 mL (0.5) Plasma Royal Blue - EDTA (Trace Element Free) Ambient / Refrigerated
Instructions Diet, medication, and nutritional supplements may introduce interfering substances. Upon the advice of their physician, patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and nonessential over-the-counter medications for one week prior to sample draw.
Allow 20-30min for Serum to clot. Centrifuge specimen and pour off serum or plasma into an Trace Element-Free Transport Tube ASAP (Preferably within 2 hours of collection.) Specimens can be transported either Refrigerated or Ambient Temperature.
Please Indicate Specimen type on Transport Tube.
Unacceptable Specimens: Separator tubes or gels. Hemolyzed specimens.
Stability: If the specimen is drawn and stored in the appropriate container, the trace element values do not change with time.
Testing Schedule Sun-Sat 
Expected TAT 1-3 Days  
Clinical Use Serum or plasma measurements are best for assessment of deficiency over short periods of time. For acute toxicity, zinc in urine may be a more reliable indicator of exposure. 
Notes Reference Lab: ARUP
Test Code: 20097
Click Here to view information on the ARUP website
CPT Code(s) 84630
Lab Section Reference Lab