Tags · Practice

syringe units

Insulin syringe graduations and the U-100 convention.

55 topics 15 solved Synonyms: u100, insulin-units Group: Practice

55 topics · page 1 of 2

Topic	Participants	Replies	Views	Activity
Reading a syringe in poor light, and how to avoid needing to Devices › Syringes & needles syringe units dead volume needle gauge & length worked example Solved Reading a syringe in poor light, and how to avoid needing to Writing it up because I had to work it out twice and would rather nobody else did. The question about reading a syringe that I actually want…		2	22k	just now
Reconstituting a multi-strength kit without mixing yourself up — what changed since Practice › Reconstitution concentration maths syringe units bacteriostatic water On the subject in the title: Reconstituting a multi-strength kit without mixing yourself up — what changed since Working notes rather than a conclusion. What changes if the standard account of Reconstituting…	+42	46	1k	7h
Fixed versus detachable needles: the trade-offs — does this still hold? Devices › Syringes & needles syringe units needle gauge & length dead volume subcutaneous injection Solved Fixed versus detachable needles: the trade-offs — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. Working notes on Fixed versus detachable…	+8	12	39k	15h
About the Reconstitution category Practice › Reconstitution reconstitution concentration maths syringe units Pinned Wiki Diluent choice, volumes, resulting concentrations, worked examples, and the errors we see most often. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is…	+1	5	15k	16h
A calculator that gives a right answer to the wrong question Data & Tools › Calculators concentration maths worked example site feedback syringe units Posting this under the heading it deserves: A calculator that gives a right answer to the wrong question Everything below is what sits behind that. Posting the calculation with the inputs, so that somebody…	+32	36	1.9k	17h
Coming back to: Why I now write the concentration on the vial in marker Practice › Reconstitution reconstitution syringe units bacteriostatic water worked example The question in the title: Why I now write the concentration on the vial in marker I will give what I have already checked below so nobody repeats it. Writing this out with the numbers in it, because…	+8	12	4.3k	1d
A 5 mg vial and a 0.25 mg dose: the arithmetic in full Practice › Reconstitution syringe units worked example reconstitution bacteriostatic water Solved A 5 mg vial and a 0.25 mg dose: the arithmetic in full Writing it up because I had to work it out twice and would rather nobody else did. 5 mg vial: setting out the arithmetic in full, because I have had to…	+124	141	16k	2d
0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Devices › Syringes & needles syringe units subcutaneous injection needle gauge & length dead volume Wiki 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters — setting out what I have, and where I think it stops being reliable. A follow-up question about 0.3 ml versus 0.5 ml that I did not know to ask…	+104	114	6k	6d
Why I now write the concentration on the vial in marker Practice › Reconstitution syringe units bacteriostatic water concentration maths Asking directly, because I could not find a straight answer: Why I now write the concentration on the vial in marker Writing this out with the numbers in it, because "roughly" is how these go wrong. Vial: 15…	+1	5	30k	11d
Second pass at: The storage lookup and where its data comes from Data & Tools › Calculators concentration maths syringe units site feedback worked example On the subject in the title: Second pass at: The storage lookup and where its data comes from Working notes rather than a conclusion. Two things I would like separated before anyone answers on storage lookup,…	+38	42	13k	19d
Coming back to: Swirling versus inverting versus leaving it alone Practice › Reconstitution reconstitution concentration maths syringe units Solved Swirling versus inverting versus leaving it alone Writing it up because I had to work it out twice and would rather nobody else did. Swirling versus inverting versus leaving — I have the observation and I do…	+20	24	16k	26d
Reading a syringe in poor light, and how to avoid needing to — what changed since Devices › Syringes & needles dead volume subcutaneous injection syringe units needle gauge & length Posting this under the heading it deserves: Reading a syringe in poor light, and how to avoid needing to — what changed since Everything below is what sits behind that. What changes if the standard account of…	+3	7	27k	27d
[2026 update] A vial that will not fully dissolve: what to check and in what order Practice › Reconstitution concentration maths dead volume bacteriostatic water syringe units Solved Posting this under the heading it deserves: A vial that will not fully dissolve: what to check and in what order Everything below is what sits behind that. Practical question with the units stated, because I…	+114	128	20k	1mo
About the Syringes & needles category Devices › Syringes & needles syringe units dead volume needle gauge & length Pinned Wiki Insulin syringe graduations, dead volume, gauge and length selection, and reading units correctly. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded…		4	45k	1mo
Choosing a concentration on purpose rather than by accident Practice › Reconstitution concentration maths worked example syringe units Solved On the subject in the title: Choosing a concentration on purpose rather than by accident Working notes rather than a conclusion. Working notes on choosing a concentration rather than a conclusion. I would…		2	719	1mo
Why the titration planner refuses to produce a schedule below a floor Data & Tools › Calculators syringe units site feedback concentration maths Solved Asking directly, because I could not find a straight answer: Why the titration planner refuses to produce a schedule below a floor Titration planner refuses — I have the observation and I do not trust my…	+76	83	53k	2mo
Reading U-100 graduations, with a conversion table — what changed since Devices › Syringes & needles worked example dead volume syringe units subcutaneous injection Reading U-100 graduations, with a conversion table — what changed since Writing it up because I had to work it out twice and would rather nobody else did. What changes if the standard account of Reading U-100…		2	10k	2mo
Reconstitution volumes that produce round numbers, tabulated Practice › Reconstitution reconstitution syringe units bacteriostatic water worked example Reconstitution volumes that produce round numbers, tabulated — setting out what I have, and where I think it stops being reliable. Writing this out with the numbers in it, because "roughly" is how these go…	+103	112	1.7k	3mo
Validating a calculator against hand arithmetic Data & Tools › Calculators syringe units concentration maths worked example Solved Validating a calculator against hand arithmetic Writing it up because I had to work it out twice and would rather nobody else did. Validating a calculator against hand: setting out the arithmetic in full,…	+17	21	12k	3mo
Foaming during reconstitution and whether it matters — the long version Practice › Reconstitution reconstitution bacteriostatic water worked example concentration maths Foaming during reconstitution and whether it matters — the long version — setting out what I have, and where I think it stops being reliable. A narrow question about Foaming during reconstitution,…	+100	117	6k	3mo
Converting between mg/mL and units per dose, both directions — the long version Practice › Reconstitution reconstitution worked example syringe units dead volume Converting between mg/mL and units per dose, both directions — the long version Writing it up because I had to work it out twice and would rather nobody else did. Practical question with the units stated,…	+110	132	1.7k	3mo
Bug report: the reconstitution calculator and a rounding edge case Data & Tools › Calculators worked example site feedback syringe units concentration maths Bug report: the reconstitution calculator and a rounding edge case — setting out what I have, and where I think it stops being reliable. Posting the calculation with the inputs, so that somebody can disagree…	+68	72	28k	4mo
Reading U-100 graduations, with a conversion table — one year on Devices › Syringes & needles syringe units needle gauge & length worked example subcutaneous injection Reading U-100 graduations, with a conversion table — one year on Writing it up because I had to work it out twice and would rather nobody else did. I would like to disagree carefully with the settled view on…	+3	7	662	4mo
Second pass at: Choosing a concentration on purpose rather than by accident Practice › Reconstitution reconstitution syringe units concentration maths Second pass at: Choosing a concentration on purpose rather than by accident Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on Choosing a…	+49	54	6k	4mo
Follow-up: Bug report: the reconstitution calculator and a rounding edge case Data & Tools › Calculators concentration maths site feedback syringe units On the subject in the title: Bug report: the reconstitution calculator and a rounding edge case Working notes rather than a conclusion. Posting the calculation with the inputs, so that somebody can disagree…	+58	63	24k	5mo
Dead volume across syringe and needle combinations Devices › Syringes & needles needle gauge & length subcutaneous injection dead volume syringe units On the subject in the title: Dead volume across syringe and needle combinations Working notes rather than a conclusion. Something about dead volume across syringe does not reconcile and I would like a second…	+72	80	28k	5mo
About the Calculators category Data & Tools › Calculators worked example concentration maths syringe units Pinned Wiki Reconstitution, dose equivalence, titration planning, mass-error checking and storage lookup. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with…	+2	7	733	5mo
Coming back to: Reconstitution volumes that produce round numbers, tabulated Practice › Reconstitution concentration maths syringe units bacteriostatic water dead volume On the subject in the title: Reconstitution volumes that produce round numbers, tabulated Working notes rather than a conclusion. Writing this out with the numbers in it, because "roughly" is how these go…		2	24k	6mo
Why "add 2 mL" is not an instruction Practice › Reconstitution reconstitution worked example syringe units dead volume The question in the title: Why "add 2 mL" is not an instruction I will give what I have already checked below so nobody repeats it. Practical question with the units stated, because I have seen how quickly…	+23	27	3.5k	6mo
Coming back to: Over-dilution: when your dose falls below one readable graduation Practice › Reconstitution worked example dead volume syringe units bacteriostatic water Over-dilution: when your dose falls below one readable graduation Writing it up because I had to work it out twice and would rather nobody else did. I have read the maintained page on this and I still have a…	+90	97	1.1k	7mo

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