Chromogranin A
Test Mnemonic
CHROMA
CPT Codes
- 86316 - QTY (1)
LOINC ®
9811-1
Aliases
- CgA
Performing Laboratory
Cleveland Clinic Laboratories
FDA Category
In Vitro Diagnostic
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Frozen | Within 2 hours of collection; centrifuge and transfer serum to CCL transport tube and freeze. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Frozen | Within 2 hours of collection; centrifuge and transfer serum to CCL transport tube and freeze. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 48 hours |
| Refrigerated | 48 hours |
| Frozen | 30 days |
Days Performed
Mon, Thu
Turnaround Time
7 days
Methodology
| Name | Description |
|---|---|
| Immunofluorescence |
Reference Range
| Chromogranin A | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | <187 | ng/mL |
Special Info
Plasma is not acceptable. Grossly hemolyzed samples will be rejected. The Chromogranin A test was performed using the B·R·A·H·M·S CgA II KRYPTOR method. Results obtained with different assay methods or kits cannot be used interchangeably.
Clinical Info