LOINC and UCUM

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A Tour of <strong>UCUM</strong> Tables10/20/2008 Copyright (c) 1999-2008 Regenstrief Institute, Inc. 22
<strong>UCUM</strong> Semantics• Unit is a product of integer-powers of base units:• 1 N = 1 kg.m/s2 = 10 3 m 1 s - 2 g 1• 1 dyn/s/cm5 = 10 8 m - 4 s - 1 g 1• 1 mmol/L= 10 - 3 m -3 mol 1• 1 U/L = 1/60 10 - 3 m - 3 s -1 mol 1• Represented as:• Factor x vector of exponents• E.g., 1/60 10 -3 x [-3,[-1, 0, 1, 0, 0, 0]10/20/2008 Copyright (c) 1999-2008 Regenstrief Institute, Inc. 23
Page 1 and 2: LOINC and UCUMGunther Schadow,Regen
Page 3 and 4: Warning• Terminology is NOT suffi
Page 5 and 6: LOINC• Logical Observation Identi
Page 7 and 8: International StandardPrinciples of
Page 9 and 10: LOINC Systems (Other)• Physiology
Page 11 and 12: Scale Type• Quantitative (QN)•
Page 13 and 14: Kind of Property• Nominal Propert
Page 15 and 16: Kind of Property• Content - Amoun
Page 17 and 18: LOINC and RELMA tour …10/20/2008
Page 19 and 20: UCUM is Easy and Precise• Human-f
Page 21: UCUM Syntax• Unit atom: g, m, min
Page 25 and 26: Rules for What is a Unit• Suffici
Page 27 and 28: UCUM is Easy and Precise• Human-f

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