does dead space actually matter or is it forum lore at this point
does dead space actually matter or is it forum lore at this point. If this has been answered properly somewhere, link me and I will delete. If your calculation produces a fraction of a unit, the concentration is wrong for your dose. Change the water volume until the numbers land on whole units. Bacteriostatic water…
How many mg in the vial and how many mL are you adding?
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.
Cosigning the round-number approach. Reconstituting to something awkward is how you end up drawing 27.5 units at six in the morning.
This. Showing the working is the fastest way for somebody else to spot the mistake.
units are a volume on a U-100 syringe, not a dose
bacteriostatic water has the preservative, sterile water does not
5mg into 2mL is 2.5mg/mL, and 1.5mg of that is 60 units
That is sterile water, not bacteriostatic. Same appearance, different product, and it matters for a multi-draw vial.
Agreed on the swirl. There is no reason to shake it and a good reason not to.
Agreed — units are volume. Once that lands, the rest of the arithmetic is one division.
Same. I got this wrong once, caught it because the units looked absurd, and have written on every vial since.
reconstituting at a round concentration makes every later dose easy