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HelpChromogranin A, Serum
Additional Codes
LAB3042
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Patient Preparation: For at least 2 weeks before specimen collection, patient should stop taking proton pump inhibitor medications.
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL Serum
Collection Information: Centrifuge and aliquot serum into plastic vial. Do not submit in original tube.
Specimen Minimum Volume
Serum: 0.2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 90 days |
| Ambient | 48 hours | |
| Refrigerated | 48 hours |
Reference Values
<93 ng/mL
Reference values apply to all ages.
CPT Code Information
86316
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CGAK | Chromogranin A, S | 9811-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CGAK | Chromogranin A, S | 9811-1 |
Report Available
1 to 3 daysSpecimen Retention Time
2 weeksDay(s) Performed
Monday through Saturday
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-General Request (T239)
-Oncology Test Request (T729)