Results of hematology or coagulation tests can be converted between conventional (US) and SI units if the conversion factors are known.
Specimen: whole blood or plasma
Hematology Test |
Specimen |
Conventional Units |
Factor for Conversion |
SIU Units |
---|---|---|---|---|
Fetal Hemoglobin |
blood, whole |
% |
0.01 |
mol/mol |
Hematocrit |
blood, whole |
% |
0.01 |
volume fraction |
Hemoglobin |
blood, whole |
g/dL |
10 |
g/L |
Hemoglobin |
blood, whole |
g/dL |
0.155 |
mmol/L |
Hemoglobin |
plasma |
mg/dL |
0.155 |
µmol/L |
MCH |
blood, whole |
pg/cell |
1 |
pg/cell |
MCH |
blood, whole |
pg/cell |
0.06206 |
fmol/cell |
MCHC |
blood, whole |
g/dL |
10 |
g/L |
MCV |
blood, whole |
cubic microns |
1 |
fL |
Platelet Count |
blood, whole |
10^3/µL |
1 |
10^9/L |
RBC |
blood, whole |
10^6/µL |
1 |
10^12/L |
Reticulocytes |
blood, whole |
reticulocytes/µL |
0.001 |
10^9/L |
WBC |
blood, whole |
10^3/µL |
1 |
10^9/L |
Coagulation Test |
Specimen |
Conventional Units |
Factor for Conversion |
SIU Units |
---|---|---|---|---|
Antithrombin III |
plasma |
mg/dL |
10 |
mg/L |
Antithrombin III |
plasma |
U/dL |
10 |
U/L |
Coagulation Factors |
plasma |
U/mL |
1000 |
U/L |
Fibrin Degradation Products |
plasma |
µg/mL |
1 |
mg/L |
Fibrinogen |
plasma |
mg/dL |
0.01 |
g/L |
Plasminogen |
plasma |
mg/dL |
10 |
mg/L |
Plasminogen |
plasma |
U/dL |
10 |
U/L |
Protein C |
plasma |
mg/dL |
10 |
mg/L |
Protein C |
plasma |
U/dL |
10 |
U/L |
Protein S |
plasma |
mg/dL |
10 |
mg/L |
Protein S |
plasma |
U/dL |
10 |
U/L |
ICD-10: ,