proportion

SIUnitsforClinicalData

HowMany?ADictionaryofUnitsofMeasurement

©RussRowlettandtheUniversityofNorthCarolinaatChapelHill

TableofContents

AbouttheDictionary

UsingtheDictionary

SIUnitsforClinicalData

ThefollowingtableprovidesfactorsforconvertingconventionalunitstoSIunitsforlectedclinical

:JAMAAuthorInstructions.

Conversion:

qtoconvertfromtheconventionalunittotheSIunit,multiplybytheconversionfactor;

qtoconvertfromtheSIunittotheconventionalunit,dividebytheconversionfactor.

ComponentConventional

Unit

Conversion

Factor

SIUnit

Acetaminophenµg/mL6.62µmol/L

Acetoaceticacidmg/dL0.098mmol/L

Acetonemg/dL0.172mmol/L

Acidphosphataunits/L1.0U/L

Alaninemg/dL112.2µmol/L

Alanineaminotransfera(ALT)units/L1.0U/L

Albuming/dL10g/L

Alcoholdehydrogenaunits/L1.0U/L

Aldolaunits/L1.0U/L

Aldosteroneng/dL0.0277nmol/L

Alkalinephosphataunits/L1.0U/L

Aluminumng/mL0.0371µmol/L

Aminobutyricacidmg/dL97µmol/L

Amitriptylineng/mL3.61nmol/L

Ammonia(asNH

3

)µg/dL0.587µmol/L

Amylaunits/L1.0U/L

Androstenedioneng/dL0.0349nmol/L

AngiotensinIpg/mL0.772pmol/L

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SIUnitsforClinicalData

AngiotensinIIpg/mL0.957pmol/L

AniongapmEq/L1.0mmol/L

Antidiuretichormonepg/mL0.923pmol/L

AntithrombinIIImg/dL10mg/L

alpha

1

-Antitrypsinmg/dL0.184µmol/L

ApolipoproteinAmg/dL0.01g/L

ApolipoproteinBmg/dL0.01g/L

Argininemg/dL57.4µmol/L

Asparaginemg/dL75.7µmol/L

Aspartateaminotransfera(AST)units/L1.0U/L

BicarbonatemEq/L1.0mmol/L

Bilirubinmg/dL17.1µmol/L

Bloodgas(arterial)

Paco

2

mmHg1.0mmHg

pHpHunits1.0pHunits

Pao

2

mmHg1.0mmHg

Bromidemg/dL0.125mmol/L

C-peptideng/mL0.333nmol/L

C1esterainhibitormg/dL10mg/L

C3complementmg/dL0.01g/L

C4complementmg/dL0.01g/L

Calcitoninpg/mL1.0ng/L

Calciummg/dL0.25mmol/L

mEq/L0.50mmol/L

CarbondioxidemEq/L1.0mmoI/L

Carboxyhemoglobin%of

hemoglobinsaturation

0.01Proportionof

hemoglobin

saturation

Caroteneµg/dL0.0186µmol/L

Ceruloplasminmg/dL10mg/L

ChloridemEq/L1.0mmol/L

Cholesterolmg/dL0.0259mmol/L

Citratemg/dL52.05µmol/L

Copperµg/dL0.157µmoI/L

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SIUnitsforClinicalData

Coproporphyrins(urine)µg/24hr1.527nmol/d

Corticotropin(ACTH)pg/mL0.22pmol/L

Cortisolµg/dL27.59nmol/L

Cotinineng/mL5.68nmol/L

Creatinemg/dL76.26µmol/L

Creatinekina(CK)units/L1.0U/L

Creatininemg/dL88.4µmol/L

CreatinineclearancemL/min0.0167mL/s

Cyanidemg/L23.24µmol/L

Dehydroepiandrosterone(DHEA)ng/mL3.47nmol/L

Desipramineng/mL3.75nmol/L

Diazepamµg/mL3.512µmol/L

Digoxinng/mL1.281nmol/L

Epinephrinepg/mL5.46pmol/L

Erythrocytedimentationratemm/h1.0mm/h

Estradiolpg/mL3.671pmol/L

Estriolng/mL3.467nmol/L

Estroneng/dL37pmoI/L

Ethanol(ethylalcohol)mg/dL0.217mmol/L

Ethyleneglycolmg/L16.11µmol/L

Ferritinng/mL2.247pmol/L

alpha-Fetoproteinng/mL1.0µg/L

Fibrinogenmg/dL0.0294µmol/L

Fluorideµg/mL52.6µmol/L

Folateng/mL2.266nmol/L

Follicle-stimulatinghormonemIU/mL1.0IU/L

Fructomg/dL55.5µmol/L

Galactomg/dL55.506µmol/L

Glucagonpg/mL1.0ng/L

Glucomg/dL0.0555mmol/L

Glutaminemg/dL68.42µmol/L

gamma-Glutamyltransfera(GGT)units/L1.0U/L

Glycatedhemoglobin(glycosylated

hemoglobinA

1

,A

1C

)

%oftotal

hemoglobin

0.01Proportionoftotal

hemoglobin

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SIUnitsforClinicalData

Glycerol(free)mg/dL108.59µmol/L

Glycinemg/dL133.3µmol/L

Haptoglobinmg/dL0.10µmol/L

Hematocrit%0.01Proportion

of1.0

Hemoglobin(wholeblood)

Massconcentration

g/dL10.0

0.6206

g/L

mmol/L

High-densitylipoproteincholesterol(HDL-

C)

mg/dL0.0259mmol/L

Histidinemg/dL64.45µmol/L

Homocysteine(total)mg/L7.397µmol/L

Humanchorionicgonadotropin(HCG)mlU/mL1.0IU/L

Hydroxybutyricacidmg/dL96.05µmol/L

Hydroxyprolinemg/dL76.3µmol/L

ImmunoglobulinA(IgA)mg/dL0.01g/L

ImmunoglobulinD(IgD)mg/dL10mg/L

ImmunoglobulinE(IgE)mg/dL10mg/L

ImmunoglobulinG(IgG)mg/dL0.01g/L

ImmunoglobulinM(IgM)mg/dL0.01g/L

InsulinµIU/mL6.945pmol/L

Iron,totalµg/dL0.179µmol/L

Ironbindingcapacity,totalµg/dL0.179µmol/L

lsoleucinemg/dL76.24µmol/L

lsopropanolmg/L0.0166mmol/L

Lactate(lacticacid)mg/dL0.111mmol/L

Lactatedehydrogenaunits/L1U/L

Lactatedehydrogena

isoenzymes(LD

1

-LD

5

)

%0.01Proportionof1.0

Leadµg/dL0.0483µmol/L

Leucinemg/dL76.237µmol/L

Lipaunits/L1.0U/L

Lipids(total)mg/dL0.01g/L

Lipoprotein(a)mg/dL0.0357µmol/L

LithiummEq/L1.0mmol/L

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SIUnitsforClinicalData

Low-densitylipoprotein

cholesterol(LDL-C)

mg/dL0.0259mmol/L

Luteinizinghormone(LH,leutropin)IU/L1.0lU/L

Lysinemg/dL68.5µmol/L

Magnesiummg/dL0.411mmol/L

mEq/L0.50mmol/L

Manganeng/mL18.2nmol/L

Methanolmg/L0.0312mmol/L

Methemoglobin%oftotal

hemoglobin

0.01Proportionoftotal

hemoglobin

Methioninemg/dL67.02µmol/L

Myoglobinµg/L0.0571nmol/L

Nicotinemg/L6.164µmol/L

Nitrogen,nonproteinmg/dL0.714mmol/L

Norepinephrinepg/mL0.00591nmol/L

Ornithinemg/dL75.67µmol/L

OsmolalitymOsm/kg1.0mmoI/kg

Osteocalcinµg/L0.171nmol/L

Oxalatemg/L11.1µmol/L

Parathyroidhormonepg/mL1.0ng/L

Phenobarbitalmg/L4.31µmol/L

Phenylalaninemg/dL60.54µmol/L

Phenytoinµg/mL3.96µmoI/L

Phosphorusmg/dL0.323mmol/L

Plasminogenmg/dL0.113µmol/L

%0.01Proportionof1.0

PlasminogenactivatorinhibitormIU/mL1.0IU/L

Platelets(thrombocytes)

x103/µL

1.0

x109/L

PotassiummEq/L1.0mmoI/L

Pregnanediol(urine)mg/24h3.12µmoI/d

Pregnanetriol(urine)mg/24h2.97µmol/d

Progesteroneng/mL3.18nmol/L

Prolactinµg/L43.478pmol

Prolinemg/dL86.86µmol/L

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SIUnitsforClinicalData

Prostate-specificantigenng/mL1.0µg/L

Protein,totalg/dL10.0g/L

Prothrombing/L13.889µmol/L

Prothrombintime(protime,PT)s1.0s

Protoporphyrin,erythrocyteµg/dL0.01777µmol/L

Pyruvatemg/dL113.6µmoI/L

Quinidineµg/mL3.08µmol/L

Redbloodcellcount

x106/µL

1.0

x1012/L

Reninpg/mL0.0237pmol/L

Reticulocytecount%ofRBCs0.01Proportion

of1.0

Salicylatemg/L0.00724mmol/L

Serinemg/dL95.2µmol/L

Serotonin(5-hydroxytryptamine)ng/mL0.00568µmol/L

SodiummEq/L1.0mmol/L

Somatomedin-C(insulinlikegrowthfactor)ng/mL0.131nmol/L(coagulation

factorII)

Somatostatinpg/mL0.611pmol/L

Taurinemg/dL79.91µmol/L

Testosteroneng/dL0.0347nmol/L

Theophyllineµg/mL5.55µmol/L

Thiocyanatemg/L17.2µmol/L

Threoninemg/dL83.95µmol/L

Thyroglobulinng/mL1.0µg/L

Thyrotropin(thyroid-stimulating

hormone,TSH)

mIU/L1.0mIU/L

Thyroxine,free(T

4

)ng/dL12.87pmol/L

Thyroxine,total(T

4

)µg/dL12.87nmol/L

Transferrinmg/dL0.01g/L

Triglyceridesmg/dL0.0113mmol/L

Triiodothyronine

Free(T

3

)pg/dL0.0154pmol/L

Resinuptake%0.01Proportionof1.0

Total(T

3

)ng/dL0.0154nmol/L

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SIUnitsforClinicalData

TroponinI(cardiac)ng/mL1.0µg/L

TroponinT(cardiac)ng/mL1.0µg/L

Tryptophanmg/dL48.97µmol/L

Tyrosinemg/dL55.19µmol/L

Ureanitrogenmg/dL0.357mmol/L

Uricacidmg/dL59.48µmol/L

Valinemg/dL85.5µmol/L

Vasoactiveintestinal

polypeptide

pg/mL1.0ng/L

VitaminA(retinol)µg/dL0.0349µmoI/L

VitaminB

6

(pyridoxine)ng/mL4.046nmol/L

VitaminB

12

(cyanocobalamin)pg/mL0.738pmol/L

VitaminC(ascorbicacid)mg/dL56.78µmol/L

VitaminD

1,25-DihydroxyvitaminDpg/mL2.6pmol/L

25-HydroxyvitaminDng/mL2.496nmol/L

VitaminEmg/dL23.22µmoI/L

VitaminKng/mL2.22nmol/L

Warfarinµg/mL3.247µmol/L

Whitebloodcellcount

x103/µL

1.0

x109/L

Whitebloodcelldifferential

count(numberfraction)

%0.01Proportionof1.0

Zincµg/dL0.153µmoI/L

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