Revisiting: What to include when your question involves arithmetic

Revisiting: What to include when your question involves arithmetic — setting out what I have, and where I think it stops being reliable.

Counting it rather than describing it, because the count is the part that can be argued with.

13 instances over 18 weeks, recorded the same way each time, 2 of them different enough from the rest that I have set them aside and said so.

That is the whole dataset. The question in the title is what it does and does not support.

Picking up post #3: that is the part I would want checked first.

Units. Everything needs units. This is why we ask every single time. I have seen the same arithmetic done three different ways depending on whether the person was thinking mg/mL or mg/dose or something else entirely. Stating the units makes that impossible.

Not disagreeing with anyone above, just adding the bit I keep having to look up.

Post #12 is right about the mechanism and I think understates the practical bit.

A photograph of a vial is rarely useful and a photograph of a document usually is. Redact the identifiers before you post either.

Nobody minds being asked to explain a term. The people who use them most are the quickest to define them, and a question that stops to ask is usually a question that gets a better answer.

I would hold that lightly until someone with a larger sample weighs in.

Arithmetic questions: write out the steps. "I have a 10 mg vial, I added 2 mL, I want a 0.25 mg dose, and I get this number for the syringe mark" is answerable. "How many units" is not.

The mechanism is plausible, which is not the same as established.