Practice · subcategory

Administration

Technique, needle selection, site rotation, injection discomfort, and what to do about a missed or partial dose.

33 topics1,473 posts5 solved Moderators: KLindqvist, dr_okonkwo About this category

subcutaneous injection injection site rotation needle gauge & length missed dose injection site reaction aseptic technique

33 topics

Topic	Participants	Replies	Views	Activity
Pinch or no pinch, and how needle length changes the answer 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. I have read the maintained page on this and I still have a gap,…	+118	126	11k	9mo
A partial dose because the pen emptied mid-injection 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. Practical question with the units stated, because I have seen how…	+108	120	1.5k	7mo
A site rotation scheme that is easy enough to actually follow 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. Practical question with the units stated, because I have seen how quickly…	+112	125	5.8k	21h
Injecting into an area that has become firm: why not to 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. Practical question with the units stated, because I have seen how…	+82	92	26k	1mo
Rotating between abdomen, thigh and upper arm: absorption differences — one year on 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. I have read the maintained page on this and I still…	+82	102	24k	just now
Angle of injection and whether 90 degrees is always right aseptic technique missed dose injection site reaction On the subject in the title: Angle of injection and whether 90 degrees is always right Working notes rather than a conclusion. Reporting something rather than asking about it, in case the pattern is useful to…	+105	116	5.4k	4mo
Injection discomfort: needle gauge, volume, temperature, technique 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. Practical question with the units stated, because I have seen how…	+66	71	14k	2mo
Follow-up: A site rotation scheme that is easy enough to actually follow subcutaneous injection injection site reaction injection site rotation aseptic technique A site rotation scheme that is easy enough to actually follow Writing it up because I had to work it out twice and would rather nobody else did. Practical question with the units stated, because I have seen…	+81	89	3.8k	22mo
Pinch or no pinch, and how needle length changes the answer — the long version injection site rotation injection site reaction missed dose aseptic technique On the subject in the title: Pinch or no pinch, and how needle length changes the answer — the long version Working notes rather than a conclusion. I have read the maintained page on this and I still have a…	+75	79	1.5k	1mo
Pinch or no pinch, and how needle length changes the answer — what changed since missed dose aseptic technique injection site rotation Solved Posting this under the heading it deserves: Pinch or no pinch, and how needle length changes the answer — what changed since Everything below is what sits behind that. I have read the maintained page on this…	+58	62	16k	1d
Revisiting: Drawing up with one needle and injecting with another 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. Practical question with the units stated, because I have…	+76	83	1.1k	4mo
Completing a dose with a second syringe, and the dead-volume arithmetic 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
Angle of injection and whether 90 degrees is always right — the long version 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. Reporting something rather than asking about it,…	+50	55	15k	2d
Revisiting: Completing a dose with a second syringe, and the dead-volume arithmetic subcutaneous injection aseptic technique needle gauge & length injection site reaction Closed Revisiting: Completing a dose with a second syringe, and the dead-volume arithmetic 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…	+16	20	56k	12mo
Bleeding at the injection site: normal, and what to do about it injection site reaction aseptic technique subcutaneous injection injection site rotation Solved Bleeding at the injection site: normal, and what to do about it — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I have been doing the…		3	59k	8mo
Air bubbles in a subcutaneous injection: the honest risk assessment — does this still hold? injection site rotation missed dose aseptic technique subcutaneous injection Wiki Asking directly, because I could not find a straight answer: Air bubbles in a subcutaneous injection: the honest risk assessment — does this still hold? Reporting something rather than asking about it, in…	+21	30	20k	4mo
Cold solution and stinging: the simplest fix injection site rotation subcutaneous injection missed dose Posting this under the heading it deserves: Cold solution and stinging: the simplest fix Everything below is what sits behind that. Reporting something rather than asking about it, in case the pattern is…	+35	39	8.2k	30d
Injecting into an area that has become firm: why not to — does this still hold? injection site rotation aseptic technique missed dose subcutaneous injection Asking directly, because I could not find a straight answer: Injecting into an area that has become firm: why not to — does this still hold? I have read the maintained page on this and I still have a gap, so…		2	49k	9mo
"Should I double up?" — answered once, at length, calmly subcutaneous injection missed dose injection site reaction "Should I double up?" — answered once, at length, calmly — setting out what I have, and where I think it stops being reliable. Practical question with the units stated, because I have seen how quickly these…	+24	28	13k	9mo
Bleeding at the injection site: normal, and what to do about it — does this still hold? injection site rotation aseptic technique subcutaneous injection needle gauge & length Bleeding at the injection site: normal, and what to do about it — does this still hold? — that is the question, and I have not found it answered plainly anywhere I have looked. Reporting something rather than…	+20	24	16k	15mo
Second pass at: Leak-back after withdrawal and whether you lost a meaningful dose 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. Reporting something rather than asking about it, in case…	+18	22	2k	25d
Follow-up: A partial dose because the pen emptied mid-injection injection site reaction subcutaneous injection injection site rotation aseptic technique Posting this under the heading it deserves: A partial dose because the pen emptied mid-injection Everything below is what sits behind that. I have read the maintained page on this and I still have a gap, so I…	+10	14	10k	23mo
A genuinely late dose: what the labelling says and what people do 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. Reporting something rather than asking about it, in case the pattern is…		2	18k	5mo
A genuinely late dose: what the labelling says and what people do — what changed since 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 site rotation scheme that is easy enough to actually follow — a second dataset 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. Practical question with the units stated,…	+6	10	1.2k	7h
Air bubbles in a subcutaneous injection: the honest risk assessment subcutaneous injection injection site reaction injection site rotation Air bubbles in a subcutaneous injection: the honest risk assessment Writing it up because I had to work it out twice and would rather nobody else did. Reporting something rather than asking about it, in case…	+1	5	12k	21mo
About the Administration category subcutaneous injection injection site rotation needle gauge & length Pinned Wiki Closed Technique, needle selection, site rotation, injection discomfort, and what to do about a missed or partial dose. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit…	+5	9	3.1k	12mo
[2026 update] Cold solution and stinging: the simplest fix 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. Reporting something rather than asking about it, in case the pattern is useful to anyone…	+6	10	496	11mo
Follow-up: "Should I double up?" — answered once, at length, calmly 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. I have read the maintained page on this and I still have a gap, so I am asking…		2	9.7k	5mo
Drawing up with one needle and injecting with another injection site rotation missed dose aseptic technique subcutaneous injection On the subject in the title: Drawing up with one needle and injecting with another Working notes rather than a conclusion. Practical question with the units stated, because I have seen how quickly these go…	+1	5	6.9k	1d

Sponsored Sigma-Aldrich — certified reference materialsReference standards, analytical reagents and certified materials for method calibration. If you are validating a method, this is where the standard comes from.Reference standards →