i mark the rotation in a notes app because the marks fade and i lost track twice
[edited]#injection-technique 2026-05-31
Sunday32 messages9 participantstimes are UTC
Highlights from this day
- thirty_one_g — 90 degrees works fine if you have the tissue for it. 45 if you do not 21:52
- van_isle_vial — the difference between 29G and 31G is real but small. the difference between wet and dry alcohol is not small 21:55
- non_scale_win — i keep getting a small welt at the site, technique or reaction 22:08
pinch, 45 degrees, count to five, withdraw slowly. two years and almost no bruising
a proper sharps bin costs almost nothing and pharmacies will take it back
90 degrees works fine if you have the tissue for it. 45 if you do not
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21:53chlorhex pinned a message to this channel
the difference between 29G and 31G is real but small. the difference between wet and dry alcohol is not small
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coming back to this how many sites are in your rotation
dont recap
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warming the vial in your hand for a minute is the cheapest comfort improvement there is
i keep getting a small welt at the site, technique or reaction
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welts at the site are usually a mild local reaction and rotation sorts it
while im here i changed nothing except letting the swab dry and the stinging stopped completely
let the alcohol dry. that is ninety percent of "my injections sting"
[edited]is bruising more about the needle or the aftercare
let it dry
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the needle went in fine but it stung going in, alcohol or the compound
not a problem
push slow
abdomen two inches out from the navel, avoiding anything that has been injected in the last month
coming back after 7 months, has the pinned technique guide changed
drawing up with the same pin you inject with is fine, it just dulls the tip slightly, not advice obviously
29G in 8mm or 12.7mm for abdomen
cold from the fridge genuinely stings more. i let it sit out for ten minutes, thats one data point
sorry to jump in 90 degrees or 45
push slowly. fast is what causes the ache afterwards
update from 18 months ago: switched to a fixed rotation and the site reactions stopped, we shall see
if you are getting a lot of bruising, look at how fast you are pushing before you blame the needle
Inter-lab diff for lot C-4402: 98.1% vs 98.6%. Within expected range.
i have eight sites and an eight week rotation. it is written on the fridge
absorption differences between subcutaneous sites are small for a weekly compound
how slowly should you actually push
mark it down
quick one a fresh pin for the injection hurts less. whether thats worth the extra dead space is your call
do not aspirate for a subcutaneous injection, there is nothing to aspirate for