Laboratory Test Information Guide

Details for Chromogranin A, Plasma

Test Name: Chromogranin A, Plasma
Alternate Name(s):  
Laboratory: Endocrinology
Specimen Type: Adult:
4 mL Lavender top (EDTA) Vacutainer tube

Pediatric:
0-2 years: 0.5 mL Lavender top (EDTA) Microtainer
2-10 years: 2 mL Lavender top (EDTA) Vacutainer tube

Red, Gold, or Light Green (Li-heparin) top tubes are NOT acceptable.
Collection Information: Minimum volume of plasma required is 400 ÁL for adult samples or 250 ÁL for pediatric samples.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Monday - Friday
0800-1600
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
5 days
Stat
 
 
Reference Range: ≤ 76 ng/mL
Effective Date: 2018-08-20
Revised Date: 2018-09-10
Critical Value:  
Interpretive Comments: Please note: new method and change in reference interval as of August 20, 2018.
Special Processing:  
Comments: Chromogranin A levels may be elevated in patients treated with proton pump inhibitors. Patients should refrain from taking proton pump inhibitors for at least one week prior to sample collection.
Method of Analysis: Thermo Fisher Fluorescent Immunoassay
Critical Information Required:  
Storage & Shipment: Store and ship plasma frozen.
System Codes: 
Cerner
CHROMA
 
Referred To:  

Questions? Comments? Contact Laura Gopaul