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SI Units Conversion Table

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SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... How Many? A Dictionary of Units of Measurement © Russ Rowlett and the University of North Carolina at Chapel Hill Table of Contents About the Dictionary Using the Dictionary SI Units for Clinical Data The following table provides factors for converting conventional units to SI units for selected clinical data. Source: JAMA Author Instructions. Conversion: to convert from the conventional unit to the SI unit, multiply by the conversion factor; to convert from the SI unit to the conventional unit, divide by the conversion factor. Component Acetaminophen Acetoacetic acid Acetone Acid phosphatase Alanine Alanine aminotransferase (ALT) Albumin Alcohol dehydrogenase Aldolase Aldosterone Alkaline phosphatase Aluminum Aminobutyric acid Conventional Unit g/mL mg/dL mg/dL units/L mg/dL units/L g/dL units/L units/L ng/dL units/L ng/mL mg/dL Conversion SI Unit Factor 6.62 0.098 0.172 1.0 112.2 1.0 10 1.0 1.0 0.0277 1.0 0.0371 97 mol/L mmol/L mmol/L U/L mol/L U/L g/L U/L U/L nmol/L U/L mol/L mol/L 1 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Amitriptyline Ammonia (as NH3) Amylase Androstenedione Angiotensin I Angiotensin II Anion gap Antidiuretic hormone Antithrombin III alpha1-Antitrypsin Apolipoprotein A Apolipoprotein B Arginine Asparagine ng/mL g/dL units/L ng/dL pg/mL pg/mL mEq/L pg/mL mg/dL mg/dL mg/dL mg/dL mg/dL mg/dL 3.61 0.587 1.0 0.0349 0.772 0.957 1.0 0.923 10 0.184 0.01 0.01 57.4 75.7 1.0 1.0 17.1 1.0 1.0 1.0 0.125 0.333 10 0.01 0.01 1.0 0.25 0.50 1.0 nmol/L mol/L U/L nmol/L pmol/L pmol/L mmol/L pmol/L mg/L mol/L g/L g/L mol/L mol/L U/L mmol/L mol/L mm Hg pH units mm Hg mmol/L nmol/L mg/L g/L g/L ng/L mmol/L mmol/L mmoI/L Aspartate aminotransferase units/L (AST) Bicarbonate Bilirubin Blood gases (arterial) Paco2 pH Pao2 Bromide C-peptide C1 esterase inhibitor C3 complement C4 complement Calcitonin Calcium Carbon dioxide mm Hg pH units mm Hg mg/dL ng/mL mg/dL mg/dL mg/dL pg/mL mg/dL mEq/L mEq/L mEq/L mg/dL 2 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Carboxyhemoglobin % of hemoglobin saturation g/dL mg/dL mEq/L mg/dL mg/dL g/dL g/24 hr pg/mL g/dL ng/mL mg/dL units/L mg/dL mL/min mg/L ng/mL ng/mL g/mL ng/mL pg/mL mm/h pg/mL ng/mL ng/dL mg/dL mg/L ng/mL 0.01 Proportion of hemoglobin saturation mol/L mg/L mmol/L mmol/L mol/L moI/L nmol/d pmol/L nmol/L nmol/L mol/L U/L mol/L mL/s mol/L nmol/L nmol/L mol/L nmol/L pmol/L mm/h pmol/L nmol/L pmoI/L mmol/L mol/L pmol/L Carotene Ceruloplasmin Chloride Cholesterol Citrate Copper Coproporphyrins (urine) Corticotropin (ACTH) Cortisol Cotinine Creatine Creatine kinase (CK) Creatinine Creatinine clearance Cyanide Dehydroepiandrosterone (DHEA) Desipramine Diazepam Digoxin Epinephrine Erythrocyte sedimentation rate Estradiol Estriol Estrone Ethanol (ethyl alcohol) Ethylene glycol Ferritin 0.0186 10 1.0 0.0259 52.05 0.157 1.527 0.22 27.59 5.68 76.26 1.0 88.4 0.0167 23.24 3.47 3.75 3.512 1.281 5.46 1.0 3.671 3.467 37 0.217 16.11 2.247 3 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... alpha -Fetoprotein Fibrinogen Fluoride Folate Fructose Galactose Glucagon Glucose Glutamine ng/mL mg/dL g/mL ng/mL mg/dL mg/dL pg/mL mg/dL mg/dL 1.0 0.0294 52.6 2.266 1.0 55.5 55.506 1.0 0.0555 68.42 1.0 0.01 g/L mol/L mol/L nmol/L IU/L mol/L mol/L ng/L mmol/L mol/L U/L Proportion of total hemoglobin mol/L mol/L mol/L Proportion of 1.0 g/L mmol/L mmol/L mol/L mol/L IU/L mol/L mol/L g/L mg/L mg/L Follicle-stimulating hormone mIU/mL gamma units/L -Glutamyltransferase (GGT) Glycated hemoglobin (glycosylated hemoglobin A1, A1C) Glycerol (free) Glycine Haptoglobin Hematocrit Hemoglobin (whole blood) Mass concentration High-density lipoprotein cholesterol (HDL-C) Histidine Homocysteine (total) Human chorionic gonadotropin (HCG) Hydroxybutyric acid Hydroxyproline Immunoglobulin A (IgA) Immunoglobulin D (IgD) Immunoglobulin E (IgE) % of total hemoglobin mg/dL mg/dL mg/dL % g/dL mg/dL mg/dL mg/L mlU/mL mg/dL mg/dL mg/dL mg/dL mg/dL 108.59 133.3 0.10 0.01 10.0 0.6206 0.0259 64.45 7.397 1.0 96.05 76.3 0.01 10 10 4 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Immunoglobulin G (IgG) Immunoglobulin M (IgM) Insulin Iron, total Iron binding capacity, total lsoleucine lsopropanol Lactate (lactic acid) Lactate dehydrogenase Lactate dehydrogenase isoenzymes (LD1-LD5) Lead Leucine Lipase Lipids (total) Lipoprotein (a) Lithium Low-density lipoprotein cholesterol (LDL-C) Luteinizing hormone (LH, leutropin) Lysine Magnesium Manganese Methanol Methemoglobin mg/dL mg/dL IU/mL g/dL g/dL mg/dL mg/L mg/dL units/L % g/dL mg/dL units/L mg/dL mg/dL mEq/L mg/dL IU/L mg/dL mg/dL mEq/L ng/mL mg/L % of total hemoglobin mg/dL g/L mg/L mg/dL 0.01 0.01 6.945 0.179 0.179 76.24 0.0166 0.111 1 0.01 0.0483 76.237 1.0 0.01 0.0357 1.0 0.0259 1.0 68.5 0.411 0.50 18.2 0.0312 0.01 g/L g/L pmol/L mol/L mol/L mol/L mmol/L mmol/L U/L Proportion of 1.0 mol/L mol/L U/L g/L mol/L mmol/L mmol/L lU/L mol/L mmol/L mmol/L nmol/L mmol/L Proportion of total hemoglobin mol/L nmol/L mol/L mmol/L Methionine Myoglobin Nicotine Nitrogen, nonprotein 67.02 0.0571 6.164 0.714 5 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Norepinephrine Ornithine Osmolality Osteocalcin Oxalate Parathyroid hormone Phenobarbital Phenylalanine Phenytoin Phosphorus Plasminogen pg/mL mg/dL mOsm/kg g/L mg/L pg/mL mg/L mg/dL g/mL mg/dL mg/dL % 0.00591 75.67 1.0 0.171 11.1 1.0 4.31 60.54 3.96 0.323 0.113 0.01 1.0 1.0 1.0 3.12 2.97 3.18 43.478 86.86 1.0 10.0 13.889 1.0 nmol/L mol/L mmoI/kg nmol/L mol/L ng/L mol/L mol/L moI/L mmol/L mol/L Proportion of 1.0 IU/L x 109/L mmoI/L moI/d mol/d nmol/L pmol mol/L g/L g/L mol/L s mol/L moI/L mol/L x 10 /L pmol/L 12 Plasminogen activator inhibitor Platelets (thrombocytes) Potassium Pregnanediol (urine) Pregnanetriol (urine) Progesterone Prolactin Proline Prostate-specific antigen Protein, total Prothrombin Prothrombin time (protime, PT) Protoporphyrin, erythrocyte Pyruvate Quinidine Red blood cell count Renin mIU/mL x 103/ L mEq/L mg/24h mg/24 h ng/mL g/L mg/dL ng/mL g/dL g/L s g/dL mg/dL g/mL x 10 / L pg/mL 6 0.01777 113.6 3.08 1.0 0.0237 6 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Reticulocyte count Salicylate Serine Serotonin (5-hydroxytryptamine) Sodium Somatomedin-C (insulinlike growth factor) Somatostatin Taurine Testosterone Theophylline Thiocyanate Threonine Thyroglobulin Thyrotropin (thyroidstimulating hormone, TSH) Thyroxine, free (T4) Thyroxine, total (T4) Transferrin Triglycerides Triiodothyronine Free (T3) Resin uptake Total (T3) Troponin I (cardiac) Troponin T (cardiac) Tryptophan Tyrosine % of RBCs mg/L mg/dL ng/mL mEq/L ng/mL 0.01 0.00724 95.2 0.00568 1.0 0.131 Proportion of 1.0 mmol/L mol/L mol/L mmol/L nmol/L (coagulation factor II) pmol/L mol/L nmol/L mol/L mol/L mol/L g/L mIU/L pg/mL mg/dL ng/dL g/mL mg/L mg/dL ng/mL mIU/L 0.611 79.91 0.0347 5.55 17.2 83.95 1.0 1.0 ng/dL g/dL mg/dL mg/dL pg/dL % ng/dL ng/mL ng/mL mg/dL mg/dL 12.87 12.87 0.01 0.0113 0.0154 0.01 0.0154 1.0 1.0 48.97 55.19 pmol/L nmol/L g/L mmol/L pmol/L Proportion of 1.0 nmol/L g/L g/L mol/L mol/L 7 of 8 3/18/2011 11:21 AM SI Units for Clinical Data http://www.unc.edu/~rowlett/units/scales/clinica... Urea nitrogen Uric acid Valine Vasoactive intestinal polypeptide Vitamin A (retinol) Vitamin B6 (pyridoxine) Vitamin B12 (cyanocobalamin) Vitamin C (ascorbic acid) Vitamin D 1,25-Dihydroxyvitamin D 25-Hydroxyvitamin D mg/dL mg/dL mg/dL pg/mL g/dL ng/mL pg/mL mg/dL pg/mL ng/mL mg/dL ng/mL g/mL x 103/ L % g/dL 0.357 59.48 85.5 1.0 0.0349 4.046 0.738 56.78 2.6 2.496 23.22 2.22 3.247 1.0 0.01 0.153 mmol/L mol/L mol/L ng/L moI/L nmol/L pmol/L mol/L pmol/L nmol/L moI/L nmol/L mol/L x 109/L Proportion of 1.0 moI/L Vitamin E Vitamin K Warfarin White blood cell count White blood cell differential count (number fraction) Zinc Return to the Dictionary Contents page. You are welcome to email the author (rowlett@email.unc.edu) with comments and suggestions. All material in this folder is copyright © 2001 by Russ Rowlett and the University of North Carolina at Chapel Hill. Permission is granted for personal use and for use by individual teachers in conducting their own classes. All other rights reserved. You are welcome to make links to this page, but please do not copy the contents of any page in this folder to another site. The material at this site will be updated from time to time. June 13, 2001 8 of 8 3/18/2011 11:21 AM
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