Urea Blood Test Specimen Type:Blood Used to investigate Zollinger-Ellison syndrome

Used to investigate Zollinger-Ellison syndrome

where prolonged deficiency may lead to peripheral neuropathy

an antibody that lines the gut wall and forms a frontline barrier against pathogens and food antigens

At-home blood spot test measuring IgG antibody levels to 240 foods

Fasting for 8 to 12 hours is recommended

Urea Blood Test Specimen Type:Blood Used to investigate Zollinger-Ellison syndromeMeasures blood urea, a waste product of protein metabolism filtered by the kidneys. Commonly ordered alongside creatinine and eGFR as part of a kidney function assessment, and more sensitive to hydration status and protein intake than creatinine alone.