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Single comment threadYou are looking at one branch of [Math] 10mg vial + 2mL bac water, i want 2.5mg, how many units — 40 comments in the full submission. View in context.
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c/reconstitution·submitted 3 days ago by u/adaeze_cabrera

[Math] 10mg vial + 2mL bac water, i want 2.5mg, how many units

Mathbranch of 11 comments

I have had 24 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 18 days on nominally the same lane, which matters more in summer than in February. The independent number came back 99.0% against a claimed…

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11 comments, started 2 days ago
u/swirl_dont_shakereconstitution119 points·2 days ago

Cored the stopper on my 13th draw because I kept using the same entry point. Rotate the puncture site.

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u/bruno_dumitru90 points·1 days ago

stopper coring on the 15th draw because you keep using the same entry point. rotate.

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[removed]85 points·2 days ago

[removed by moderator]

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u/britta_nakamura49 points·1 days ago

Show the arithmetic. Where did the units come from?

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u/janek_ferrari72 points·1 days ago

u-100 syringe, not u-40, or your math is off by factor of 18

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u/elodie_grimaldi67 points·2 days 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/bruno_dumitru79 points·1 days ago

show your working or it is unhelpful

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u/swirl_dont_shakeMOD54 points·2 days 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/sigrid_kaufmann26 points·2 days ago

i am begging people to write down the concentration

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u/emil_okwuosa16 points·2 days ago

This is an urgent-care question wearing a forum question's clothes.

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

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u/adaeze_cabreraOP20 points·1 days ago

Yeah, showing the arithmetic is the fastest way for someone to spot the error.

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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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