Diagnosis of gastrinoma, Zollinger-Ellison syndome and G-cell hyperplasia

Patient should have discontinued proton pump inhibitors for two weeks (Protium, Losec and Zoton) and hydrogen receptor antagonists for 72 hrs (Zantac and Tagament), and Rantidine.

Fasting patient should rest for 10 minutes prior to sampling.

Sample must be received on ice within 15 minutes of venesection.

Other Comments:

Analysed at SAS Endocrine Laboratory, Clinical Biochemistry, 8th Floor, Charing Cross Hospital, Imperial College NHS Healthcare Trust, Fulham Palace Road, London, W6 8RF


Interpretive comments will be provided by the referral laboratory

For more information, please see the following: 

Gastrin - Lab Tests Online
Fasting guidance

About This Test

Department: Biochemistry (referred)


  • EDTA (purple top)

Turnaround Time:

6 - 8 weeks