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

[Meta] proposal — a flair for bacteriostatic water posts

PSAbranch of 14 comments

mg/mL. That is the whole post, but I will justify it. Everything else people worry about in c/intlshipping is downstream of it. Titration speed, early fullness, the endless dose arguments — most of it resolves if you sort mg/mL out first, and almost nobody does. I say this having got it wrong for 17 months. My eGFR…

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14 comments, started 1 year ago
u/emil_zamora755 points·1 year ago

dosing errors come from people reconstituting two vials differently and forgetting which is which

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u/declared_value_dv211 points·1 year ago

dosing errors come from people reconstituting two vials differently and forgetting which is which

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/sock_puppet_spotter65 points·1 year ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/rasmus_mensahOP495 points·1 year ago

Cored the stopper on my 5th draw because I kept using the same entry point. Rotate the puncture site.

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u/anya_antonsen-15 points·1 year ago

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

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u/adaeze_cabrera1 point·1 year ago

i am begging people to write down the concentration

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[deleted]1 point·1 year ago

[deleted]

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u/julia_erdogan1 point·1 year ago

the concentration on the vial in marker is the most important step

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u/ines_ekstrom1 point·1 year ago

Slight fix: the number was 98.7, not 98.9. Decimal point, but a fairly consequential one.

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u/zaid_balogun1 point·1 year ago

dosing errors come from people reconstituting two vials differently and forgetting which is which

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u/signe_grimaldi391 points·1 year ago

Are you using a u-100 or u-40 syringe? That changes everything.

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u/honest_syringe_maybe259 points·1 year ago

never post a calculation as advice without stating the concentration

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u/nadia_kjaer328 points·1 year ago

Are you using a u-100 or u-40 syringe?

Yes, exactly this, and it is the bit that took me 95 weeks to accept.

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u/tuva_kirchner109 points·1 year ago·edited

Small correction: the trial was 11 weeks, not 14. Does not change your point but people will quote it.

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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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