Why "add 2 mL" is not an instruction — a second dataset

Why "add 2 mL" is not an instruction — a second dataset — that is the question, and I have not found it answered plainly anywhere I have looked.

Reporting something rather than asking about it, in case the pattern is useful to anyone else.

Over 11 weeks I logged this consistently: date, dose, time of day, and a simple severity score from 0 to 4 for each symptom. That is 88 data points, all self-reported, all unblinded, and collected by someone who knew what he expected to find. Treat it accordingly.

The reason I am posting is that my experience does not match the shape people usually describe here, and I would like to know whether that is unusual or whether the usual description is just the loudest version.

Reconstituting a multi-strength kit: if a kit contains 5 mg, 10 mg, 15 mg vials and you are reconstituting all of them, writing the concentration on each vial in permanent marker as you go is the single most useful thing you can do to avoid dose errors later.

This follows post #2 rather than contradicting it.

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.