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A 40-year-old female asked:

is the anion gap test normally part of the comprehensive metabolic panel? i had many blood tests and i don't remember the anion gap being on them.

2 doctor answers4 doctors weighed in
Dr. Ed Friedlander
Pathology 44 years experience
It's there: It's calculated from the sodium, potassium, bicarb and chloride. In this case, the lab did it to be helpful to the physician.
Dr. Mazen Kherallah
Infectious Disease 34 years experience
Yes: The anion gap is calculated from the electrolyte panel.

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Last updated Mar 23, 2014
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