Depends: GI issues can cause hypokalemia like diarrhea or vomiting. False positives for chromogranin A can be related to PPI use like omeprazole, as can pernicious anemia, kidney and/or liver issues. False positive VIP levels can be from fasting, small bowel surgeries, and kidney disease but also elevated in inflammatory bowel disease.
Answered 9/26/2014
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3 doctors weighed in across 2 answers
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2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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