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Dosage question

Posted

So...this is somewhat nursing related in that it's a medication dilution, but it's for my plants and I'm a bit stumped.

If I have a tablet that is .03 mg that can be crushed and added to liquid, how do I get a concentration of .003 mg/ml? I add one tablet to 10 ml of liquid, right? Or do I need to count the amount of volume the tablet itself will displace?

agldragonRN

Specializes in Wound Care, LTC, Sub-Acute, Vents. Has 5 years experience.

0.03mg = 0.003mg

x________1ml

cross multiply

x = 10ml

So...this is somewhat nursing related in that it's a medication dilution, but it's for my plants and I'm a bit stumped.

If I have a tablet that is .03 mg that can be crushed and added to liquid, how do I get a concentration of .003 mg/ml? I add one tablet to 10 ml of liquid, right? Or do I need to count the amount of volume the tablet itself will displace?

The amount the pill displaces is very small, so small it would be very difficult to adjust for. Even in my O chem class, we just deal with volume of liquids, we don't consider the displacement of the solid (and our labs are microscale....so we're only dealing with a couple mL's at a time).

Peace,

CuriousMe