Hello I need some help with practice problems. I know the answer but I want an explanation of the answer.
total dosage strength is 500mg
solvent(diluent) added to prepare 1.5ml
Final concentration of solution prepared 280ml
QUESTION: 400 mg is ordered how many milliliters (ml) will you give?
The book says 1.4 ml given but why? is that the amout of dilutent per prepared solution
thank you in advance for your help!
total dosage strength is 500mg
solvent(diluent) added to prepare 1.5ml
Final concentration of solution prepared 280ml
QUESTION: 400 mg is ordered how many milliliters (ml) will you give?
The book says 1.4 ml given but why? is that the amout of dilutent per prepared solution
thank you in advance for your help!
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I don't understand the "Final concentration of solution prepared 280ml" mL is not a concentration unit.
If you dissolved 500 mg of drug in 1.5 mL of solvent, then the concentration of that solution is
500 mg / 1.5 mL = 333 mg / mL
If you want to administer a 400-mg dose, then
400 mg x (1 mL / 333 mg) = 1.2 mL
If you dissolved 500 mg of drug in 1.5 mL of solvent, then the concentration of that solution is
500 mg / 1.5 mL = 333 mg / mL
If you want to administer a 400-mg dose, then
400 mg x (1 mL / 333 mg) = 1.2 mL