Units of Measure
A list of common units used in the reporting of our assays has been defined. Refer to the table for these units as well as the recommended report abbreviations.
Last updated: June 6, 2025
| Unit of Measure | Approved Report Abbreviation |
|---|---|
| % binding | % binding |
| % bound | % bound |
| % conversion | % conver |
| % excretion | % excret |
| % Fat | % fat |
| % hemoglobin | % Hb |
| % hemolysis | % hemol |
| % index | % index |
| % inhibition | % inhib |
| % live | % live |
| % neg control | % neg ctrl |
| % Normal | % norm |
| % normal control | % norm ctrl |
| % of normal | % norm |
| % of total | % total |
| % positive | % pos |
| % ppt (percent precipitate) | % ppt |
| % reactivity | % react |
| % total | % total |
| % total Cholesterol | % total chol |
| % total Hemoglobin | % total Hb |
| % volume | % vol |
| /24 hours | /24 h |
| /day | /24 h |
| /high power field | /hpf |
| /low power field | /lpf |
| /milliliter | /mL |
| 100 mL | dL |
| a ratio | ratio |
| AChR | AChR |
| Am.U/L | Am U/L |
| Antibody Response Unit | ABR |
| ASA reaction units | ARU |
| at term | at term |
| AU/mL | AU/mL |
| bands (chromosome tests) | bands |
| C2H50 U/mL | C2H50 U/mL |
| cells | cells |
| centimeter | cm |
| centipoises | cpoise |
| cholesterol | Chol |
| cm H2O | cm H2O |
| copies | copies |
| creatinine (not referenced in reporting title) | Cr or Creat |
| Dalton(s) | Da |
| day(s) | d |
| deciliter | dL |
| degrees (angle measurements) | degrees |
| degrees Celsius | deg C |
| delta Gibbs or delta G | DG |
| delta Optical Density | delta OD |
| disintegrations per minute | disintegrations/min |
| dose(s) | dose |
| EIA units | EIA U |
| Equivalent units | EU |
| events | events |
| Every 6 hours | q6h |
| femtoliter | fL |
| femtomole | fmol |
| Fragments/mL | Fragments/mL |
| glomerular filtrate | GF |
| GPL Units | GPL |
| gram dry weight | g dry wt |
| gram of tissue | g tissue |
| gram(s) | g |
| gram/100 mL | g/dL |
| gram/210 Liters | g/210 L |
| hemoglobin | Hb |
| hour(s) | h |
| hr,min | h,min |
| IgA phospholipid units | APL |
| Index | index |
| international units | IU |
| kilodalton | kDa |
| kilogram | kg |
| kilograms per square meter | kg/m² |
| KU | kU |
| Liter | L |
| log Fragments/mL | log Fragments/mL |
| mEq/30' | mEq/30 min |
| mg every 6hours | mg q6h |
| micro Unit | mcU |
| microEquivalent | mcEq |
| microgram AHG Eq | mcg AHG Eq |
| microgram Eq | mcgEq |
| microgram Equivalent | mcgEq |
| microgram N | mcg N |
| microgram T4 | mcg T4 |
| microgram(s) | mcg |
| microInternational Units | micro IU or mcIU |
| microliter | mcL |
| microliter equivalent | mcLEq |
| micromole | mcmol |
| microUnit | mcU |
| milliequivalent | mEq |
| milligram | mg |
| milliinternational units | mIU |
| milliliter | mL |
| milliliter of cells | mL of cells |
| millimeter | mm |
| millimeter H2O | mm H2O |
| millimeter induration | mm induration |
| millimole | mmol |
| milliosmole | mOsm |
| milliunits | mU |
| minute(s) | min |
| mL/min/1.73m2 | mL/min/BSA |
| ml/min/SA | mL/min/BSA |
| mL/min/Surface Area | mL/min/BSA |
| mm Hg (millimeter Mercury) | mm Hg |
| mole | moles |
| Molecules/Cell | Molecules/Cell |
| multiple of the median (MOM) | MoM |
| multiply by 10-6 | x10(-6) |
| multiply by 10-5 | x10(-5) |
| multiply by 103 | x10(3) |
| multiply by 106 | x10(6) |
| multiply by 109 | x10(9) |
| multiply by 1012 | x10(12) |
| MPL | MPL |
| nanogram | ng |
| nanometer | nm |
| nanomole | nmol |
| optical density | OD |
| P2Y12 reaction units | PRU |
| parts per million | ppm |
| percent | % |
| pH | pH |
| picogram(s) | pg |
| picomole | pmol |
| pounds | lbs |
| protein | Prot |
| ratio | ratio |
| Red blood cells (RBC) | RBC |
| Relative Units | RU |
| Score of | score |
| second(s) | Sec |
| specimen | spec |
| spot forming unit | SFU |
| Standard Deviation | SD |
| Standard IgA anti-beta-2 GPI unit | SAU |
| Standard IgG anti-beta-2 GPI unit | SGU |
| Standard IgM anti-beta-2 GPI unit | SMU |
| stimulating index | S.I. |
| surface area | 1.73m(2) or BSA |
| thou cpm (thousand counts per minute) | thou cpm |
| thousand | thou |
| threshold | threshold |
| thyroxine binding index | TBI |
| titer | titer |
| torr | torr |
| Total/Mechanical | Tot/Mec |
| TSI index | TSI index |
| unit(s) | U |
| V/V (volume/volume) | vol/vol |
| vial(s) | vial(s) |
| volume % | vol % |
| week(s) | wk |
| Weeks,Days | wk,d |
| White blood cells | WBC |
| year(s) | yr |