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c/reconstitution·submitted 1 year ago by u/RetaAndRegret2

anyone else notice units kicking in around week 4

Correctionbranch of 8 comments

Posting this because I searched for it and got nothing useful. Setup: 1.7mg, week 32, injection-site soreness present but not ruining anything. I changed exactly one variable — dead space — and tracked it for 20 weeks. Result: a difference, but a small one, and well inside what I would call noise if someone else…

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8 comments, started 1 year ago
u/sock_puppet_spotter88 points·1 year ago

Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.

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u/RetaAndRegret2OP45 points·1 year ago

Cosigning. The concentration on the vial in marker is load-bearing.

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u/alcohol_aversion26 points·1 year ago

u-100 syringe, not u-40, or your math is off by factor of 23

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u/ruben_cabrera15 points·1 year ago

dead space is real and the syringe matters

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u/ahmed_rasmussen14 points·1 year ago·edited

Cosigning. The concentration on the vial in marker is load-bearing.

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u/nadia_kjaer24 points·1 year ago

Dead space in the needle hub holds a small but non-trivial volume.

Yes, exactly this, and it is the bit that took me 29 weeks to accept.

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u/ruben_cabrera17 points·1 year ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/hedda_ekstrom128 points·1 year ago

dead space is real and the syringe matters

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