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What is the dead-space loss per draw with a 25G drawing needle at 5 mg/mL?

Asked 30 Aug 2025Modified 11 months agoViewed 3.9k times
12

Setup, so nobody has to ask: a 25G drawing needle · 5 mg/mL.

I have worked this out and I would like someone to find the error, because I suspect there is one.

My working so far, for the record, is below, and I am fairly sure the error is in the unit conversion rather than the algebra.

How many significant figures are actually justified here?

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askedamara_nwachukwu41k3830 Aug 2025

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