Realy hoping someone can shed some light on this! I have atrial fib for many years now and have a CMP done every 6 months - bloodwork always perfect! This time around calcium came back 10.7.... I have been taking triamterine (with hctz) daily for almost 2 months, which I usually don't do, but had put myself on a strict diet. This is prescribed to me by my heart doc but I only usualy take it once or twice a week for all these years. Could this daily use have affected my calcium numbers? I go in a week for another blood test to see if it has come down.. Thanks!