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Kalamazoo, MI
A 32-year-old male asked:

Had blood work done and anion gap is 18. is this high? the lab defines this in normal range. is it? why do different labs have different normal ranges? if high what should i be looking for?

2 doctor answers2 doctors weighed in
Dr. Atul Singh
Nephrology and Dialysis 29 years experience
AG: 18 is high. Normal AG is 10-12, it is your measured albumin times 3. What was your bicarbonate (sodium bicarbonate) ? Do you have a medical history of any illness. If not then this can be a processing error and you may need a fresh sample drawn. Suggest look at the whole lab and discuss with the MD that ordered it. If you have no medical issues simply rpt it.
Dr. Gurmukh Singh
Pathology 50 years experience
See below: Do you have any symptoms? Why was the test done? All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, it would have helped to have all the results from the tests. Different testing methods do give different results, that is why each lab reports it reference range.

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Last updated Apr 23, 2018


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