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c/reconstitution·posted 2 years ago by u/liv_nkemelu

dead space — 12 things I got wrong before I got it right

Question Slow Clap ×6

Quick one. Canada here.

units 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 6 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.

824 up / 18 down98% upvoted55 commentsid h9i1t78 Feb 2024

55 comments

15 in this archive, depth 3

best — the order this archive was captured in

u/cardio_endpoint_c152 points·2 years ago

Two vials, two different concentrations, forgot which was which, almost made a 10 times error. Now I label everything.

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u/viktor_erdogan52 points·2 years ago

You have restated the marketing copy. What is the actual substance here.

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u/arto_falk135 points·2 years ago

I am going to push back on this slightly.

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u/priya_weiss31 points·2 years ago

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

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u/liv_nkemeluOP19 points·2 years ago

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

Disagree on that part. 96.8% and 96.2% on the same vial is normal.

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u/kavya_radich79 points·2 years ago

Is that 30mg vial or 19mg?

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u/tomas_kimani33 points·2 years ago

You have restated the marketing copy. What is the actual substance here.

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u/hedda_adeyemi33 points·2 years ago

Titration speed is a side-effect dial far more than an efficacy dial.

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u/dexa_twice_yearlybody comp38 points·2 years ago

20mg vial, 2mL water, concentration is 20/2 — write it on the vial afterwards

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u/swirl_dont_shakeMOD17 points·2 years ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/liv_nkemeluOP6 points·2 years ago

i am begging people to write down the concentration

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u/sleep_apnea_sam6 points·2 years ago·edited

never post a calculation as advice without stating the concentration

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u/ines_ekstrom42 points·2 years ago·edited

Two vials, two different concentrations, forgot which was which, almost made a 19 times error. Now I label everything.

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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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