My most recent labs indicated that my eGFR is 43 and my blood creatinine is 1.27 on a scale that says over .98 is high. Is this something to be concerned about? The eGFR has been going up and down for several years. This is the first the creatinine has been up. It is creeping higher the prior result was .99. I have an appointment with a nephrologist but not for 2 months.