sterile water is not bacteriostatic water and it is not close
Quick one. Canada here.
reconstitution works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US.
Specifics: the route I used took 23 weeks and cost roughly what I expected. The admin was worse than the cost. The thing that would have saved me the most time was knowing which document to ask for at the start.
Happy to answer questions from anyone in the same jurisdiction.
best — the order this archive was captured in
Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.
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Disagree. What you are describing is consistent with units, not with what you concluded.
Cosigning. The concentration on the vial in marker is load-bearing.
Did you write the concentration on the vial?
Removed a chain here. The rule is one line long and it is not negotiable.
20mg vial, 2mL water, concentration is 20/2 — write it on the vial afterwards
never post a calculation as advice without stating the concentration
never post a calculation as advice without stating the concentration
Yes, exactly this, and it is the bit that took me 81 weeks to accept.
the concentration on the vial in marker is the most important step
This is correct. 2mL versus 23mL is the common mistake.
swirl, do not shake, or you are courting oxidation
Disagree. What you are describing is consistent with dead space, not with what you concluded.
Slight fix: the number was 98.7, not 98.3. Decimal point, but a fairly consequential one.
bacteriostatic and sterile water are not interchangeable, do not use them that way
Respectfully this is a sample of one presented as a finding.
Respectfully this is a sample of one presented as a finding.
Disagree on that part. 97.9% and 97.6% on the same vial is normal.
Yeah, showing the arithmetic is the fastest way for someone to spot the error.
Yeah, showing the arithmetic is the fastest way for someone to spot the error.
Disagree on that part. 99.1% and 99.2% on the same vial is normal.
dosing errors come from people reconstituting two vials differently and forgetting which is which
What was the vial size and how much bac water?
bacteriostatic and sterile water are not interchangeable, do not use them that way
Are you using a u-100 or u-40 syringe? That changes everything.
I love that this community will spend 40 comments on a detail. That pedantry is why the numbers here matter.
The confident tone is doing a lot of work that the evidence is not.
i am begging people to write down the concentration
This is correct. 1mL versus 11mL is the common mistake.
Mechanistically the bit that matters is units. It explains most of the early profile and a decent chunk of the outcome.
the concentration on the vial in marker is the most important step
- 1Did you write the concentration on the vial?9 comments in this branch · started by u/adaeze_cabrera
- 2Disagree. What you are describing is consistent with dead space, not with…5 comments in this branch · started by u/vito_beaulieu