GI physio question

[dreamforever]

Can someone help me with this?

Salivary, gastric, and pancreatic secretions and stool samples were collected in identical tubes from a healthy subject and a patient diagnosed with untreated gastrinoma (Zollinger-Ellison syndrome). A new technician (who didn’t read the protocol) wrote the sample identities with a marker on the side of the tubes, but then quick-froze them in an ethanol-dry ice bath. Afterwards he found out that ethanol completely removes marker! These are key samples that can’t be tossed; you have to figure this out. First tell me what biochemical measures/tests would distinguish the organ source of the samples from each other (salivary, gastric, pancreatic and stool) in the healthy subject. Give me your physiology rationale. Then tell me how you could distinguish these from those of the gastrinoma patient (include your physiology rationale). Can they all be distinguished? If not tell me why.​

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[GoSpursGo]

This isn't a Step 1 question, and SDN isn't for homework help. Thread closed.