Few questions about the PTCB exam

[davidscott]

In studying the common latin abbreviations there is an abbreviation, the latin phrase, and the meaning - do you have to know the latin phrase?

Ex: a - ante - before


Also, I need help on one of the math questions since the answer is not in the back of the book.

A prescription calls for 0.0025g of atropine sulfate. How much of a 1:10 stock powder must be used for this Rx?


Thanks for any help