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c/reconstitution·submitted 1 year ago by u/clara_weiss

[PSA] bacteriostatic water is not what most of this community thinks it is

PSAbranch of 8 comments

Quick one. Canada here. dead space 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 18 weeks and cost roughly what I expected. The admin was worse than the…

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This branch

8 comments, started 1 year ago
u/signe_grimaldi39 points·1 year ago

Cosigning. The concentration on the vial in marker is load-bearing.

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u/anjali_tamm14 points·1 year ago

Respectfully this is a sample of one presented as a finding.

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u/britta_nakamura8 points·1 year ago

dead space is real and the syringe matters

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u/sleep_apnea_sam7 points·1 year ago·edited

dead space is real and the syringe matters

Disagree on that part. 98.1% and 96.2% on the same vial is normal.

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u/erez_perrin4 points·1 year ago

never post a calculation as advice without stating the concentration

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u/runa_cabrera20 points·1 year ago

more water means more units for the same dose, which means finer resolution

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u/aleksi_lehtinen17 points·1 year ago

Show the arithmetic. Where did the units come from?

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u/marisol_frisk19 points·1 year ago

u-100 syringe, not u-40, or your math is off by factor of 15

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About c/reconstitution

The arithmetic and the technique. Bacteriostatic versus sterile water, reconstitution volume as a concentration choice, converting mg/mL into insulin-syringe units, dead space, swirl-not-shake, stopper coring, and how long a reconstituted vial is actually good for. Math errors get corrected fast and politely.

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