units — 21 things I got wrong before I got it right
Thinking out loud about this: units — 21 things I got wrong before I got it right. 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 every draw. Started reconstituting everything to a round concentration and the six-in-the-morning error rate went to zero.…
Right — the volume you add is the only variable you control here, and the cake does not change it meaningfully.
How many mg in the vial and how many mL are you adding?
Yes. Writing 2.5mg/mL on the vial takes four seconds and removes the entire class of error this board exists to fix.
Yes.
Disagreeing with this line only: adding more water is not a safety margin, it is a different divisor.
the powder cake sits at the bottom, the volume you add is the volume that counts
What is written on the vial right now?
Right — the volume you add is the only variable you control here, and the cake does not change it meaningfully.
Adding one thing — put the date on the label too. Concentration plus date and you can never mix two vials up.
units are a volume on a U-100 syringe, not a dose