Conversion of Conventional Chemistry Units to SI Units

Elephant Formulary

© 2003-06 Susan K. Mikota DVM and Donald C. Plumb, Pharm.D.
Published by Elephant Care International - www.elephantcare.org

Conversion of Conventional Chemistry Units
to SI Units

Formulary

Table of Contents
   incl. Appendices
Introduction
Drug Monographs
     Index Ophthalmic Products
Medication
    Techniques
(large file - slow)
Compounding
    Pharmacies

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The Système Internationale d’Unites (SI), or the International System of Units was recommended for use in the health professions by the World Health Assembly in 1977. It is slowly being adopted in the United States and many journals now require its use. The following is an abbreviated table of conversion values for some of the more commonly encountered tests that may now be reported in SI Units.

Albumin g/dl x 10 = g/L

Ammonia mg/dl x 0.5872 = mmol/L

Bilirubin mg/dl x 17.10 = mmol/L

Calcium mg/dl x 0.2495 = mmol/L

Cholesterol mg/dl x 0.02586 = mmol/L

CO2 pressure, pCO2 mmHg x 0.1333 = kPa

Creatinine mg/dl x 88.4 = µmol/L

Glucose mg/dl x 0.05551 = mmol/L

Lactate mg/dl x 0.111 = mmol/L

Magnesium mg/dl x 0.4114 = mmol/L

O2 pressure, PO2 mmHg x 0.1333 = kPa

Phosphorus mg/dl x 0.3229 = mmol/L

Protein g/dl x 10 = g/L

Urea Nitrogen mg/dl x 0.7140 = mmol/L

Amylase IU/L = U/L

AST (SGOT) IU/L = U/L

ALT (SGPT) IU/L = U/L

Lipase IU/L = U/L

ALP IU/L = U/L

SDH (Sorbitol) IU/L = U/L

Bicarbonate, Chloride, CO2 (total), Potassium, & Sodium do not require conversion from conventional to SI units.