help me understand mg/mL, I have read the wiki twice
help me understand mg/mL, I have read the wiki twice. I would rather ask a basic question now than get this wrong quietly for two months. Reconstituted at 3mL when I meant to use a different volume. Caught it because the units looked wrong on the barrel. Now I write 5mg/mL on the glass before I put the cap back. I…
Disagree with the "more water is safer" framing. It is not safer, it is just a different number to divide by.
Wrote the date on the vial as well as the concentration after losing track of which one was opened first.
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.
Bacteriostatic water contains benzyl alcohol as a preservative, which is what makes repeated entry into the same vial reasonable. Plain sterile water has no preservative.
What is written on the vial right now?
swirl, never shake
10mg into 2mL is 5mg/mL, and 0.5mg of that is 10 units
That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.
Not quite. Bacteriostatic and sterile water are not interchangeable for a multi-draw vial, and the difference is the preservative.