Table 1.

Blood sample results from lithium heparin tube.a

SubstanceResultReference interval
Creatinine, mg/dL1.920.73–1.36
Potassium, mmol/L4.13.6–4.6
Calcium, mg/dL14.68.6–10.2
Phosphorus, mg/dL4.532.7–4.7
Bicarbonate, mmol/L3022–29
  • a To convert creatinine in mg/dL to μmol/L, multiply by 88.4; phosphorus in mg/L to mmol/L, multiply by 0.0323; and calcium in mg/dL to mmol/L, multiply by 0.25.