First time reconstituting — can someone sanity-check my math?

Question

First time reconstituting and I want a sanity check. 5mg vial, added 2ml bac water. That's 2500mcg/ml right? And a 250mcg dose would be 0.1ml = 10 units on the insulin pin? Just want to confirm I'm not about to do something dumb.

Marcus Vale · Accepted Answer

Your math is right: 5mg = 5000mcg ÷ 2ml = 2500mcg/ml. Then 250mcg ÷ 2500 = 0.1ml = 10 units on a U-100.

The reconstitution calculator does exactly this if you want to double-check future ones. Note it's just the arithmetic — not a dosing recommendation.

Kev · Answer

The calculator saved me from a decimal error once. Use it every single time, even when you're sure.

First time reconstituting — can someone sanity-check my math?

2 Replies