Short and quick nursing math question..

[justme1972]

I am doing some nursing math homework and came across the following measure: gr ss

I know that gr (which is 60mg) stands for grain and ss stands for 1/2.

My question is, does gr ss stand for 1/2 grain (which would be 30 mg) or does it stand for a grain AND 1/2, which would be 90 mg?

I would really appreciate it...my book only lists gr and ss separately, but doesn't tell me what the two mean together.

THANKS!

[Daytonite, BSN, RN]

It stands for 1/2 a grain which would be 30mg.

[RN BSN 2009]

yes 30 mg

[justme1972]

THANKS! I really appreciate it!