Chromogranin A (CgA) Build info

Synonyms

• CHROMOGRANIN A
• LAB10009

Short Name

CHROMOGRANIN A

Procedure Master Number

LAB10009

Procedure ID

167407

Clinical Info

Aids in follow-up or surveillance of patients with known or treated carcinoid tumors. May be useful in monitoring nonsecretory sympathetic and parasympathetic neuroendocrine tumors.

Specimen Type

Blood

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold top tube or Red top tube
Specimen: 0.5 mL serum (0.3 mL min)

Transport Instructions

Refrigerated

Specimen Stability

7 Days Room Temperature
14 Days Refrigerated 
3 Months  Frozen

Methodology

The Thermofisher/BRAHMS KRYPTOR® assay employs Time-Resolved Amplified Cryptate Emission Cryptate Emission (TRACE) technology based on a non-radioactive energy transfer between a donor (europium cryptate) and an acceptor (XL665) in a sandwich immunofluorescent format using two mouse monoclonal antibodies.37-40 This assay is calibrated against recombinant human CG, and according to the manufacturer's package insert.

Days Performed

TAT   4- 7 days

Performing Laboratory

LabCorp

CPT

86316
LOINC Code: 25587-7

PDM

5910049

Results