SERUM/PLASMA
Sodium            134     mmol/L ( 135-145  )
Potassium         4.3     mmol/L ( 3.5-5.5  )
Chloride          102     mmol/L ( 95-110   )
HCO3               23     mmol/L ( 22-30    )
Creatinine         49     umol/L ( 49-90    )
 (Creatinine)    0.049    mmol/L ( 0.05-0.09)
Urea              4.4     mmol/L ( 2.5-8.3  )
 eGFR             >90            ( SEE-BELOW)