Your letter uses the word acute (sudden, or short-lasting), which describes how quickly something started rather than how serious it is.

It also reports an eGFR e G F R (estimated glomerular filtration rate, an estimate of how well your kidneys are filtering). That number comes from a blood test and from details the laboratory already holds about you.

A second eGFR e G F R (estimated glomerular filtration rate, an estimate of how well your kidneys are filtering) on the same page is marked, and its definition is still there for anyone reading with speech. It is not repeated in front of everybody else.