<prompt> Answer this question truthfullyWhat are the laboratory results for a VIPoma?  <response>: <reason> Laboratory findings consistent with the diagnosis of VIPoma include: Elevated serum vasoactive intestinal polypeptide VIP levels: Normal fasting serum VIP level is generally 75 pgml In VIPomas levels of VIP is generally 500 pgml. VIP level 200pgml is strongly suggestive of VIPoma. Hormone measurement taken at the time of diarrhea l episode has the highest yield as VIP secretion during period of diarrhea and has short t12 approx. 2 mins in blood. Single measurement should be confirmed by repeat testing. Elevated pancreatic polypeptide levels Normal 312 pgml and neurotensin levels. Low serum potassium, bicarbonate, and magnesium levels secondary to fecal loss. High calcium levels secondary to fecal loss. Low basal gastric acid output. 