Tags · Practice

needle gauge & length

Gauge and length selection for subcutaneous injection.

37 topics 8 solved Group: Practice

37 topics · page 1 of 2

Topic	Participants	Replies	Views	Activity
Rotating between abdomen, thigh and upper arm: absorption differences — one year on Practice › Administration injection site reaction needle gauge & length aseptic technique injection site rotation Rotating between abdomen, thigh and upper arm: absorption differences — one year on — setting out what I have, and where I think it stops being reliable. Asking about Rotating between abdomen directly,…	+82	102	24k	just now
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
A site rotation scheme that is easy enough to actually follow — a second dataset Practice › Administration subcutaneous injection needle gauge & length injection site rotation missed dose A site rotation scheme that is easy enough to actually follow — a second dataset Writing it up because I had to work it out twice and would rather nobody else did. Two things I would like separated before…	+6	10	1.2k	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
A site rotation scheme that is easy enough to actually follow Practice › Administration needle gauge & length missed dose injection site rotation aseptic technique On the subject in the title: A site rotation scheme that is easy enough to actually follow Working notes rather than a conclusion. Two things I would like separated before anyone answers on site rotation…	+112	125	5.8k	21h
Completing a dose with a second syringe, and the dead-volume arithmetic Practice › Administration aseptic technique subcutaneous injection missed dose needle gauge & length Wiki Posting this under the heading it deserves: Completing a dose with a second syringe, and the dead-volume arithmetic Everything below is what sits behind that. I have read the maintained page on this and I…	+65	76	7.4k	1d
Reading U-100 graduations, with a conversion table Devices › Syringes & needles dead volume worked example subcutaneous injection needle gauge & length Posting this under the heading it deserves: Reading U-100 graduations, with a conversion table Everything below is what sits behind that. A question about reading U-100 graduations that I think has a definite…	+35	41	2k	1d
Angle of injection and whether 90 degrees is always right — the long version Practice › Administration injection site reaction needle gauge & length injection site rotation missed dose Pinned Angle of injection and whether 90 degrees is always right — the long version Writing it up because I had to work it out twice and would rather nobody else did. A narrow question about Angle of injection,…	+50	55	15k	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
Second pass at: Leak-back after withdrawal and whether you lost a meaningful dose Practice › Administration subcutaneous injection needle gauge & length missed dose Second pass at: Leak-back after withdrawal and whether you lost a meaningful dose — setting out what I have, and where I think it stops being reliable. I have read the maintained page on this and I still have…	+18	22	2k	25d
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
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
Injecting into an area that has become firm: why not to Practice › Administration subcutaneous injection injection site rotation injection site reaction aseptic technique Solved Injecting into an area that has become firm: why not to Writing it up because I had to work it out twice and would rather nobody else did. Asking about the failure mode rather than the procedure, because the…	+82	92	26k	1mo
Injection discomfort: needle gauge, volume, temperature, technique Practice › Administration subcutaneous injection injection site reaction needle gauge & length aseptic technique Injection discomfort: needle gauge, volume, temperature, technique — setting out what I have, and where I think it stops being reliable. Injection discomfort: setting out the arithmetic in full, because I…	+66	71	14k	2mo
[2026 update] 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Devices › Syringes & needles dead volume needle gauge & length subcutaneous injection Solved On the subject in the title: 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Working notes rather than a conclusion. A follow-up question about 0.3 ml versus 0.5 ml that I did not know to ask the…	+108	124	27k	2mo
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
Revisiting: Drawing up with one needle and injecting with another Practice › Administration subcutaneous injection injection site reaction needle gauge & length missed dose Revisiting: Drawing up with one needle and injecting with another Writing it up because I had to work it out twice and would rather nobody else did. A practical question that I suspect has a boring answer,…	+76	83	1.1k	4mo
Rotating between abdomen, thigh and upper arm: absorption differences Practice › Administration injection site reaction needle gauge & length missed dose aseptic technique On the subject in the title: Rotating between abdomen, thigh and upper arm: absorption differences Working notes rather than a conclusion. Asking about rotating between abdomen directly, because I have read…		2	3.5k	5mo
A genuinely late dose: what the labelling says and what people do Practice › Administration injection site rotation missed dose needle gauge & length injection site reaction On the subject in the title: A genuinely late dose: what the labelling says and what people do Working notes rather than a conclusion. A methods question rather than a substantive one, about genuinely late…		2	18k	5mo
Follow-up: "Should I double up?" — answered once, at length, calmly Practice › Administration needle gauge & length aseptic technique injection site rotation subcutaneous injection On the subject in the title: "Should I double up?" — answered once, at length, calmly Working notes rather than a conclusion. A practical question that I suspect has a boring answer, which is why I could not…		2	9.7k	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
Filter needles: when they help and what they cost you Devices › Syringes & needles needle gauge & length subcutaneous injection dead volume On the subject in the title: Filter needles: when they help and what they cost you Working notes rather than a conclusion. Trying to work out what would count as evidence on filter needles, before collecting…	+45	50	19k	5mo
A genuinely late dose: what the labelling says and what people do — what changed since Practice › Administration subcutaneous injection missed dose needle gauge & length injection site rotation Solved A genuinely late dose: what the labelling says and what people do — what changed since — setting out what I have, and where I think it stops being reliable. I have read the maintained page on this and I still…	+9	13	474	6mo
A partial dose because the pen emptied mid-injection Practice › Administration subcutaneous injection needle gauge & length injection site rotation missed dose Solved A partial dose because the pen emptied mid-injection Writing it up because I had to work it out twice and would rather nobody else did. A methods question rather than a substantive one, about partial dose…	+108	120	1.5k	7mo
Gauge and length selection for subcutaneous injection Devices › Syringes & needles syringe units needle gauge & length worked example subcutaneous injection Solved Gauge and length selection for subcutaneous injection Writing it up because I had to work it out twice and would rather nobody else did. A follow-up question about gauge and length selection that I did not…	+50	55	1.3k	8mo
Pinch or no pinch, and how needle length changes the answer Practice › Administration injection site reaction aseptic technique needle gauge & length missed dose Pinch or no pinch, and how needle length changes the answer Writing it up because I had to work it out twice and would rather nobody else did. A question about pinch that I think has a definite answer, unlike…	+118	126	11k	9mo
Injection discomfort: needle gauge, volume, temperature, technique — one year on Practice › Administration missed dose aseptic technique injection site rotation needle gauge & length Posting this under the heading it deserves: Injection discomfort: needle gauge, volume, temperature, technique — one year on Everything below is what sits behind that. Asking about Injection discomfort…		2	102	9mo
A ten-fold dose error caught before injection Devices › Syringes & needles needle gauge & length worked example syringe units dead volume Closed A ten-fold dose error caught before injection — setting out what I have, and where I think it stops being reliable. Trying to work out what would count as evidence on ten-fold dose error caught, before…	+95	103	26k	10mo
Revisiting: Filter needles: when they help and what they cost you Devices › Syringes & needles worked example needle gauge & length subcutaneous injection dead volume Closed Revisiting: Filter needles: when they help and what they cost you — setting out what I have, and where I think it stops being reliable. Trying to work out what would count as evidence on Filter needles,…	+48	52	6.6k	11mo
[2026 update] Cold solution and stinging: the simplest fix Practice › Administration subcutaneous injection needle gauge & length aseptic technique injection site reaction Cold solution and stinging: the simplest fix — setting out what I have, and where I think it stops being reliable. A follow-up question about Cold solution and stinging that I did not know to ask the first…	+6	10	496	11mo

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