Mass concentration (g/dL or g/L) is the most common measurement unit in the United States. Is usually given with dL (decilitres) as the denominator in the United States, and usually with L (litres) in, for example, Sweden.
Molar concentration (mol/L) is used to a higher degree in most of the rest of the world, including the United Kingdom and other parts of Europe and Australia and New Zealand.[4]
International units (IU) are based on measured biological activity or effect, or for some substances, a specified equivalent mass.
Enzyme activity (kat) is commonly used for e.g. liver function tests like AST, ALT, LD and γ-GT in Sweden.[5]
Percentages and time-dependent units (mol/s) are used for calculated derived parameters, e.g. for beta cell function in homeostasis model assessment or thyroid's secretory capacity.
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Len
Lab values USA vs EU & SI for Hgb & Hct
F= Females M= Males
Interesting and thanks. Strange it says we here in US use dl ---??? I've never ever heard any doctor or layperson speak of deciliter. Have you (if in US)?
People tend to ignore the units and just mention the value. That can lead to confusion unless the reference range is also included, particularly when it is possible to have both different reference volumes and units of measure (e.g. grams, moles, cells).
The deciliter is most definitely commonly used in the USA - the trigger for commencing treatment (under 10) in your NCCN Guidelines is expressed in g/dl (grams per deciliter).
In Australia and England, we use grams per litre, so that the trigger for starting treatment is haemoglobin dropping below 100 g/l (ten times the reference volume).
Mole is the unit for counting atoms, molecules and apparently in Holland cells. Atomic mass and number of molecules are linked by Avogadro's number, 6. 022 × 10^23.
A mole of Veneloclax is 868.44 grams, while BTKi drugs are around 440 - 480 grams, so about half the size. I have no idea what the atomic mass of a Hg cell is (wiki does).
"Results are reported in g/L, g/dL or mol/L. 1 g/dL equals about 0.6206 mmol/L, although the latter units are not used as often due to uncertainty regarding the polymeric state of the molecule.[92] This conversion factor, using the single globin unit molecular weight of 16,000 Da, is more common for hemoglobin concentration in blood. For MCHC (mean corpuscular hemoglobin concentration) the conversion factor 0.155, which uses the tetramer weight of 64,500 Da, is more common."
Men: 13.8 to 18.0 g/dL (138 to 180 g/L, or 8.56 to 11.17 mmol/L)
Women: 12.1 to 15.1 g/dL (121 to 151 g/L, or 7.51 to 9.37 mmol/L)
Children: 11 to 16 g/dL (110 to 160 g/L, or 6.83 to 9.93 mmol/L)
Pregnant women: 11 to 14 g/dL (110 to 140 g/L, or 6.83 to 8.69 mmol/L) (9.5 to 15 usual value during pregnancy)
Hi, I’m in NZ so our system of measurement should be the same. Here, when HGB goes below 8.0 they begin treatment with blood transfusions. I’ve gone below that number 3x over the past 17 years or so and had blood transfusions each time to get back up over 8 — 18 transfusions in total. I’m sure her doctor will want to address this. Good luck.
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