Zinc, Serum or Plasma


Sunquest Code:ZNC  
Epic Code:LAB4193Epic Name:Zinc
Methodology:Inductively Coupled Plasma/Mass Spectrometry
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-2 days.
Compliance:

This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.



Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:1.2 mL
Container:Trace Element, EDTA (DE) (Trace Element, Serum (DB))
Patient Preparation:Diet, medication and nutritional supplements may introduce interfering substances. Patient should be encouraged to discontinue nutritional supplements, vitamins, minerals and non-essential over-the-counter medications (upon the advice of their physician).
Causes for Rejection:Samples that are not separated from the red cells within 2 hours; hemolyzed specimens; separator tube.


Processing and Shipping

Specimen Processing:Separate serum/plasma from cells within 2 hours of collection. Centrifuge and aliquot 2 mL, 0.5 mL minimum into ARUP metal-free container. Store at room temperature.Refrigerated or frozen also acceptable.
Shipping Instructions:Ship at room temperature. Also acceptable refrigerated or frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:20097


Interpretive

Reference Range:60-120 ug/dL
Use:Circulating zinc concentrations are dependent on albumin status and are depressed with malnutrition. Zinc may also be lowered with infection, inflammation, stress, oral contraceptives and pregnancy. Zinc may be elevated with zinc supplementation or fasting. Elevated zinc concentrations may interfere with copper absorption. Note: Elevated results from noncertified trace element-free tubes may be due to contamination. Elevated concentrations of trace elements in serum should be confirmed with a second specimen collected in a trace element-free tube, such as royal blue sterile tube (no additive).


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