LOINC long common name : Deprecated PhenX measure - serum creatinine assay for kidney function;
LOINC description : A bioassay to measure the serum concentration of creatinine, a metabolite of muscle
creatine that is filtered out of blood by the kidneys. Serum creatinine concentration
is the most standardized way to calculate glomerular filtration rate (GFR) as a measure
kidney function.;