Practice · Administration · continued

A partial dose because the pen emptied mid-injection posts 121–121

Practice › Administration subcutaneous injection needle gauge & length injection site rotation missed dose Solved

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1 · go to the accepted answer.

dr_bhattacharyaTL3Physician11 Jan 2026#121

Nicolaides, post #10: Narrowing post #9, because the general version has more than one answer. The single most common technique error described here is drawing to the wrong graduation because the barrel was read at an angle. Read it straight on, at eye level, every time. Somebody will have a better source than mine, and I hope they post it. Go to post

Note the site alongside the dose. If a local reaction appears three weeks later you will want to know where the previous four injections went.

7 likes in reply to #10 7mo

This topic was referenced in

Bleeding at the injection site: normal, and what to do about it — does this still hold?Practice › Administration · 24 replies
Revisiting: Completing a dose with a second syringe, and the dead-volume arithmeticPractice › Administration · 20 replies
Pinch or no pinch, and how needle length changes the answer — what changed sincePractice › Administration · 62 replies

Suggested topics

Topic	Participants	Replies	Views	Activity
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
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
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
Angle of injection and whether 90 degrees is always right Practice › Administration 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. Something about angle of injection does not reconcile and I would like a second…	+105	116	5.4k	4mo
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

Related topics — sharing the tags subcutaneous injection, needle gauge & length, injection site rotation

Topic	Participants	Replies	Views	Activity
Pen mechanics when the cartridge is nearly empty Devices › Pens & autoinjectors storage subcutaneous injection dead volume Pen mechanics when the cartridge is nearly empty — setting out what I have, and where I think it stops being reliable. Trying to work out what would count as evidence on pen mechanics, before collecting any.…		2	661	22mo
Where the four-week escalation interval comes from, and what it is not Practice › Dosing & titration missed dose semaglutide tirzepatide titration Solved On the subject in the title: Where the four-week escalation interval comes from, and what it is not Working notes rather than a conclusion. Working notes on four-week escalation interval rather than a…	+56	60	21k	2y
The lowest dose that does anything: is that a real question? Practice › Dosing & titration dose reduction worked example missed dose titration Asking directly, because I could not find a straight answer: The lowest dose that does anything: is that a real question? I have read the maintained page on this and I still have a gap, so I am asking rather…	+100	111	9.1k	5mo
Clearance pathways and what renal impairment changes Pharmacology › Pharmacokinetics missed dose liraglutide tirzepatide worked example Clearance pathways and what renal impairment changes Writing it up because I had to work it out twice and would rather nobody else did. What changes if the standard account of clearance pathways is wrong? I…	+11	15	43k	2mo
Pen dose counters: what a click does and does not guarantee Devices › Pens & autoinjectors missed dose subcutaneous injection storage Under review On the subject in the title: Pen dose counters: what a click does and does not guarantee Working notes rather than a conclusion. Pen dose counters — I have the observation and I do not trust my interpretation…	+116	122	1.6k	8mo