Muaj ob chav ntsuas ntshav qabzib, ib qho yog milligrams ib deciliter (mg / dl), uas yog chav qub; Lwm qhov yog millimoles/liter (mmol/L), uas yog chav tsev tshiab.
Txawm hais tias cov txheej txheem tshiab ntawm cov chav nyob tam sim no tau tawm tswv yim, cov txheej txheem qub ntawm cov chav nyob tseem siv tau rau hauv qee qhov ntau. Yog li ntawd, yuav tsum paub yuav ua li cas hloov ntawm ob. Cov mis hloov pauv rau ob chav yog: mg / dl÷18=mmol / L; mmol/L × 18=mg/dl.
Piv txwv li: thaum 120mg / dl hloov mus rau hauv tus nqi hauv mmol / L, nws yuav tsum tau muab faib los ntawm 18, uas yog, 120mg / dl÷18=6.67mmol / L; Thaum 6.67 mmol / L hloov mus rau hauv tus nqi hauv mg / dl, Yuav tsum tau muab faib ua 18, uas yog, 6.67 mmol / L × 18=120mg / dl.