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If I reconstitute a 40 mg vial with 2 mL of 0.9% sodium chloride, what concentration do I end up with?

Asked 2 Dec 2025Modified 8 months agoViewed 5k times
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The case in front of me: 40 mg · 2 mL · 0.9% sodium chloride.

I want the working, not the result — I need to be able to redo it with different numbers.

I care about the precision as well as the value — I want to know how many figures are real.

Is my approach right even if my number is wrong?

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askedteodora_ilic15k282 Dec 2025

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