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Course: Serum Cystatin C for Estimation of GFR

CME Credits: 1.00

Released: 2022-08-08

An 80-year-old man with type 2 diabetes and hypertension was referred to the nephrology clinic for assessment of persistent hyperkalemia despite discontinuation of his angiotensin-converting enzyme inhibitor. The patient was frail, sedentary, and had a body mass index of 37. Select blood testing results are shown in . His estimated glomerular filtration rate (eGFR) was calculated using 3 equations that incorporated creatinine (eGFRcr), cystatin C (eGFRcys), and both creatinine and cystatin C (eGFRcr-cys), as shown in .


Educational Objective
To understand how to interpret the results of diagnostic tests and apply them clinically.


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