Of mols and standards

Someone tells me items A and B measure 160 and 240. I chat internationally with my brother, and he says that to his knowledge item C is comparable to B but measures 5.4. It took me two days to realize that I live in a country that refuses to cooperate with the rest of the world in using the International System of Units (SI aka metric system). Always ask what units the measurements are in!

Millimoles per liter (mmol/L): Some medical tests give results in millimoles per liter (mmol/L). A mole is an amount of a substance, containing a large number (6.022×1023) of entities (often molecules or atoms). A millimole is one-thousandth of a mole. A liter measures fluid volume.

People in America who need to communicate with the rest of the world should know that to convert cholesterol levels from their mg/dl to the standard mmol/l, one should divide by 39. So A and B are 4.1 and 6.2 mmol/L.