I have regular labs due to metastatic breast cancer. My CMP is usually normal, however, my anion gap has been decreasing. In March it was 12, in April it was 4, and this week, it measured at 2. My doctor is not concerned. From what I have been reading, it appears that follow-up is necessary. Would you recommend to someone that has labs like mine to request further testing. Would this be urgent? And lastly, what could cause someone's AG to continue decreasig?
Thank you for your help.