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Conversion Factors and Anthropometrics

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CONVERSION FACTORS

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SI Units

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SI (le Systéme International d'Unités) units are used in many countries to express clinical laboratory and serum drug concentration data. Instead of using units of mass (e.g., micrograms), the SI system uses moles (mol) to represent the amount of a substance. A molar solution contains 1 mole (the molecular weight of the substance in grams) of the solute in 1 L of solution. The following formula is used to convert units of mass to moles (mcg/mL to μmol/L or, by substitution of terms, mg/mL to mmol/L or ng/mL to nmol/L).

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Micromoles per Liter
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Milliequivalents
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An equivalent weight of a substance is the weight that will combine with or replace 1 g of hydrogen; a milliequivalent is 1/1,000 of an equivalent weight.

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Milliequivalents per Liter
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Table Graphic Jump Location
Approximate Milliequivalents: Weight Conversions for Selected Ions
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Table Graphic Jump Location
Valences and Atomic/Molecular Weights of Selected Ions

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