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#injection-technique 2026-04-29

Wednesday46 messages8 participantstimes are UTC
Highlights from this day
  • reship_rita — abdomen two inches out from the navel, avoiding anything that has been injected in the last month 15:12
  • night_pin — 90 degrees works fine if you have the tissue for it. 45 if you do not 17:56
  • the_bet_2026 — push slowly. fast is what causes the ache afterwards, for what its worth 18:07
  • the_bet_2026 — sorry to jump in do you change the pin between drawing up and injecting 18:23
AA

absorption differences between subcutaneous sites are small for a weekly compound

AA

30G in 8mm or 12.7mm for abdomen
a fresh pin for the injection hurts less. whether thats worth the extra dead space is your call

II

do not aspirate for a subcutaneous injection, there is nothing to aspirate for

rotate

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RR

i have eight sites and an eight week rotation. it is written on the fridge

while im here drawing up with the same pin you inject with is fine, it just dulls the tip slightly

NP

sorry to jump in a small air bubble subcutaneously is not dangerous. it costs you dose accuracy, thats the reason to clear it

RR

abdomen two inches out from the navel, avoiding anything that has been injected in the last month

coa-g-0641.pdf
1 page · 183 KB · not retained in the public archive

*Medutest not the other one

the needle went in fine but it stung going in, alcohol or the compound

31G 8mm for everything. i tried the 12.7mm once and never went back
update from 26 months ago: switched to a fixed rotation and the site reactions stopped

NP

a proper sharps bin costs almost nothing and pharmacies will take it back

NP

do you aspirate, or is that only an intramuscular thing

TB

i inject the back of my own arm and it is awkward but doable with a mirror

T5

nobody here should be telling you where to inject. we can tell you what we do

T5

unrelated but i changed nothing except letting the swab dry and the stinging stopped completely

small bubble is fine

TB

if you are getting a lot of bruising, look at how fast you are pushing before you blame the needle, anyway

NP

90 degrees works fine if you have the tissue for it. 45 if you do not

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45 degrees

TB

push slowly. fast is what causes the ache afterwards, for what its worth

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TB

sorry to jump in do you change the pin between drawing up and injecting

medutest-report-b-0329.pdf
3 pages · 408 KB · not retained in the public archive

whats your sharps disposal setup, mine is a jar and i know thats wrong

TB

coming back after 15 months, has the pinned technique guide changed

TB

coming back to this bleeding a little means you nicked a small vessel. it is not a technique failure

welts at the site are usually a mild local reaction and rotation sorts it

FT

do not reuse pins. it is not about sterility so much as the tip being blunt after one pass