someone explain mg/mL to me like I have not read a paper in years
someone explain mg/mL to me like I have not read a paper in years. I am not trying to be the "source?" guy. I would just like a source. The lyophilised cake displaces a small volume, so the true concentration is very slightly lower than the arithmetic suggests. It is a fraction of a percent and it is dwarfed by fill…
I keep a laminated card in the drawer with the arithmetic on it. Looks ridiculous. Has never once let me draw the wrong volume.
Corrected the concentration in the title, which contradicted the body. Nothing else touched.
write the concentration on the vial in marker, that is the whole post
reconstituting at a round concentration makes every later dose easy
Is that a U-100 syringe? The barrel markings change the answer completely.
more water is not more drug, it is the same drug in a bigger volume
Small fix — a U-100 syringe is 100 units per mL. If yours is marked differently it is not U-100 and the whole calculation changes.
Agreed — units are volume. Once that lands, the rest of the arithmetic is one division.
Agreed — units are volume.
Right, and the arithmetic behind it: 15mg in 2mL is 7.5mg/mL, so 1.5mg is 20 units.
Wrote the date on the vial as well as the concentration after losing track of which one was opened first.