Looking over my blood tests, I see that the two times (a few years ago) my anion gap was calculated it was just above the normal range (e.g 18 when the range is 8 to 16). My son's anion gap was similarly at the high end of normal. A high anion gap suggests that the blood is too acid - i.e. acidosis. And my low levels of albumin might be making the anion gap appear more normal than it is. https://adc.bmj.com/content/87/6/526 Has anyone identified a similar problem?