why does nobody talk about units
The title is the whole question — why does nobody talk about units — but here is why I am asking. Started reconstituting everything to a round concentration and the six-in-the-morning error rate went to zero. The dead space question sent me down a rabbit hole for a week. It is a fraction of a unit and it is the same…
do the arithmetic before you reconstitute, not while holding a syringe
do the arithmetic before you reconstitute, not while holding a syringe
ines_ekstrom has the units point exactly right. They are a volume on the barrel and nothing else.
the number you write down is the number you will trust at 6am
Research-use-only material is not approved for human use, so treat everything in this thread as arithmetic about solutions rather than instructions for a person.
That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.
Wrote the date on the vial as well as the concentration after losing track of which one was opened first.
That is sterile water, not bacteriostatic. Same appearance, different product, and it matters for a multi-draw vial.
10mg into 2mL is 5mg/mL, and 0.5mg of that is 10 units