vialroom

#injection-technique 2025-08-10

Sunday47 messages9 participantstimes are UTC
Highlights from this day
  • two_ml_two — do not reuse pins. it is not about sterility so much as the tip being blunt after one pass 12:31
  • tokyo_taper — quick one drawing up with the same pin you inject with is fine, it just dulls the tip slightly 12:53
  • tokyo_taper — the difference between 29G and 31G is real but small. the difference between wet and dry alcohol is not small i inject the back of my own arm and it is awkward but… 14:18
CC

coming back to this the needle went in fine but it stung going in, alcohol or the compound

TM

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

🧪10💀11

try the thigh

[edited]

absorption differences between subcutaneous sites are small for a weekly compound

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

is there any reason to warm the vial in your hand first

TT

quick one drawing up with the same pin you inject with is fine, it just dulls the tip slightly

🙏13🧪1
FT

31G 8mm for everything. i tried the 12.7mm once and never went back

📉1

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

LL

while im here i have eight sites and an eight week rotation. it is written on the fridge, for what its worth

AO

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

LL

update from 2 months ago: switched to a fixed rotation and the site reactions stopped

how far from the navel is actually far enough

TT

coming back after 3 months, has the pinned technique guide changed

TT

for the archive do you change the pin between drawing up and injecting

the difference between 29G and 31G is real but small. the difference between wet and dry alcohol is not small
i inject the back of my own arm and it is awkward but doable with a mirror

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

unrelated but 90 degrees or 45

LL

bleeding a little means you nicked a small vessel. it is not a technique failure

CC

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

CC

warming the vial in your hand for a minute is the cheapest comfort improvement there is

LL

pinch, 45 degrees, count to five, withdraw slowly. two years and almost no bruising
a fresh pin for the injection hurts less. whether thats worth the extra dead space is your call

does the injection site matter for how quickly it hits

CC

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

🔥1

45 degrees

AN

slightly off topic but is 31G noticeably better than 29G or is it marginal
cold from the fridge genuinely stings more. i let it sit out for ten minutes

LL

genuine question i keep the sharps bin next to the fridge so the whole thing happens in one place

TM

follow up if you are getting a lot of bruising, look at how fast you are pushing before you blame the needle, i think

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

31G 8mm