Gut Hormone Profile
| Gut Hormone Profile / Chromogranin A/B | |
| Chromogranin A, Chromogranin B, VIP, PP, PG, SRIF, NT, glucagon, gastrin, GHP, CGAB | |
| 1 x 7.5ml EDTA (Red Top) Tube + 1 x 4.7ml Gel (Brown Top) Tube. The red EDTA tube should be transported to the laboratory on ice. Upon arrival in the laboratory the EDTA sample is centrifuged at 4200 rpm for 12 min at +4oC within 15 minutes of venepuncture and the plasma stored frozen prior to referral. If sample is haemolysed, instruct phlebotomy to re-bleed patient. If sample is not haemolysed, instruct phlebotomy that patient may leave department. Urea and calcium should be requested and processed on the serum sample. | |
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Test referred to another centre for analysis: The SAS Laboratories Expected turnaround time: 6 weeks |
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| Used in the investigation of disorders of gut hormone secretion. Chromogranin A and B can be requested seperately for the investigation of neuroendocrine tumours. | |
| Blood must be collected with the patient at rest after a complete overnight fast. H2 anatgonists should be stopped for 72 hrs and omeprazole should be stopped for two weeks before blood is taken. Contact referral lab for more information | |
| Contact referral laboratory | |
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| N/A |
