Gastrin - serum
Last updated: Friday, 26, March, 2004
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5 mL blood in plain tube.
Patient must be fasting.
Serum should be separated promptly and stored frozen.
| Reference Interval||<100 ng/L.|
|Application||Diagnosis of Zollinger-Ellison syndrome.|
If the patient is fasting, and is not taking therapy for peptic ulcer, an elevated level indicates abnormally increased gastrin production.
If the level is 100-500 ng/L, a stimulation test, using either secretin or intravenous calcium, may help to distinguish Zollinger-Ellison syndrome from other causes of hypergastrinaemia eg, atrophic gastritis and pernicious anaemia - consult pathologist.
|Reference||Li ML and Norton JA. Curr Treat Options Oncol 2001; 2(4): 337-346.|