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Chromogranin A

Item Value
Approval req'd? No
Available Stat? No
Test code CGA
Performed by Quest
Sendout? Yes
Method Electrochemiluminescence
Container type Gold top
Amount to Collect 1.6 mL blood
Sample type Serum
Preferred volume 0.8 mL serum
Min. Volume 0.3 mL serum
UCSF Rejection Criteria Grossly icteric, hemolyzed or lipemic samples.
Processing notes Refrigerate sample. Order Quest # 16379

Order test #16380 for patients requiring re-baseline for samples
Ref Lab Rejection Criteria Grossly icteric, hemolyzed or lipemic samples.
Units ng/mL
Normal range 1.9-15.0 ng/mL
Stability Room temperature or refrigerated 1 week, frozen at -20C 5 weeks.
Turn around times Test set up Tuesday-Saturday. Turnaround 5-7 days
Additional information This test was performed using a laboratory developed electrochemiluminescent method. Values obtained with different assay methods cannot be used interchangeably. Chromogranin A levels, regardless of value, should not be interpreted as absolute evidence of the presence or absence of disease.

For those patients whose clinical condition is currently being monitored with the Chromogranin A test, rebaseline testing is available from 07/12/10 to 10/08/2010 at no additional charge. You may order a Chromogranin A test that includes rebaseline testing by ordering Test Code 16380-Chromogranin A, ECL, with Re-baseline or by calling the laboratory. The specimen will be stored for 21 days from the receipt of the specimen.
CPT coding 86316-90
LOINC code 9811-1
Last Updated 11/20/2010 11:22:18 AM
Entry Number 200
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