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Zinc, plasma

Item Value
Approval req'd? No
Available Stat? No
Test code ZINC
Test group Zinc
Performed by UC Irvine
Sendout? Yes
Method Inductively Coupled Plasma Mass Spectroscopy (ICPMS)
Patient Preparation The patient should refrain from taking vitamins or mineral supplements for at least 3 days prior to specimen collection.
Collection Instructions Because Zinc levels display a circadian rhythm which peaks at 0900 and 1800, specimens should always be drawn at the same time of day.

Be sure to gently mix the specimen promptly after phlebotomy.

Click here for detailed instructions for collecting samples for Trace Metals
Container type Navy blue top (EDTA) tube
Amount to Collect 4 mL blood
Sample type EDTA plasma
Preferred volume 1 mL plasma
Min. Volume 0.6 mL plasma
UCSF Rejection Criteria Collected in Gold top. Moderate to gross hemolysis.
Processing notes Centrifuge the tube at 1000G for 10 minutes, separate plasma from cells within 2 hours of collection, pour the plasma into a plastic trace element shipping container and ship to China Basin sendouts frozen.
Ref Lab Rejection Criteria Hemolysis
Units µg/dL (mcg/dL)
Normal range 55 - 150 µg/dL (mcg/dL)
Stability Room temperature 1 day, refrigerated 2 weeks, frozen at -20C 6 months.
Turn around times 3-7 days.
CPT coding 84630
LOINC code 5763-8
Last Updated 12/9/2013 2:18:44 PM
Entry Number 960
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