Chromogranin A




Test Mnemonic

CHROMA

CPT Codes

  • 86316 - QTY (1)

LOINC ®

9811-1

Aliases

  • CgA

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) Refrigerated 

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red)   

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
Ambient1 day
Refrigerated7 days
Frozen14 days

Days Performed

Mon, Thu

Turnaround Time

7 days

Methodology

Name Description
Enzyme-Linked Immunosorbent Assay (ELISA) 

Reference Range

Chromogranin A
Sex Age From Age To Type Range Range Unit
       Normal<98ng/mL

Special Info

Plasma is not acceptable. Grossly hemolyzed samples will be rejected. The Chromogranin A test was performed using the Cisbio CGA ELISA method. Results obtained with different assay methods or kits cannot be used interchangeably.

Clinical Info

Clinical Limitation

Samples displaying cloudiness, hemolysis, or containing fibrin may give inaccurate results. Chromogranin A is a calcium binding protein and its circulating levels are affected by the Ca++ concentration.