SERUM/PLASMA Sodium 135 mmol/L ( 135-145 ) Potassium 5.8 mmol/L ( 3.5-5.5 ) Chloride 98 mmol/L ( 95-110 ) HCO3 22 mmol/L ( 22-30 ) Creatinine 281 umol/L ( 49-90 ) (Creatinine) 0.281 mmol/L ( 0.05-0.09) Urea 26.5 mmol/L ( 2.5-8.3 ) eGFR 14 ( SEE-BELOW) C-React Prot 2 mg/L ( <5 )