Help Emergency math for meds question! What does gr i ss mean???

OKay so im cramming for my second year math validation exam and did most of the problems in the book and can't find this anywhere. I remeber that I knew it last semester in the class but its not in the book and i know it was all over the exam last year. but i cant remember to save my life and the exam is in 6 hours. Please HELP!!!!
gr i ss (with the line over the ss) to mg 

Aug 30, '07Occupation: Nurse Educator Specialty: 13 year(s) of experience in NICU ; From: TX, US ; Joined: Nov '05; Posts: 8,750; Likes: 1,6921 gr = 60 mg
The ss with the line over it means "half"  that help? 
Aug 30, '07Occupation: ER here I come!! Joined: Feb '07; Posts: 38; Likes: 4Hey,
I'm not sure what the "i" stands for but the ss with a line over the top means onehalf..
"gr" stands for grain,
One grain= 60mg
1/2gr= 30mg
This is the only thing I can think of for that problem.. 
Aug 30, '07Occupation: Peds RN Specialty: Peds ; Joined: May '06; Posts: 56; Likes: 43Thanks guys... I still cant figure out what the little i is but hopefully someone will know at school tomorrow. Ugh. Thats what I get for picking up too many shifts during my 2 weeks off and waiting till the last possible minute. Hope everyone is having a great time going back to school, back to school to prove to dad that i'm not a fool (billy madison anyone?) OKOKOKOK ill stop procrastinating even more and study.

Aug 30, '07Joined: May '06; Posts: 435; Likes: 87The i is like roman numerals. i is 1, ii is 2, iv is 4, etc Always with the squiggle over them and yes, the ss is 1/2. We just saw that on our ERI tests & everyone was thrown for a loop. I have only seen it in use in the MAR for PRN meds. When a patient could have 1 or 2 tabs, the nurse used this way to indicate how many she gave.
Dixie 
Aug 30, '07Joined: Jan '07; Posts: 4,317; Likes: 4,901gr (grain) i (one) ss (half) is 1/2 half grain
the little i is the roman numeral for 1. You might see it as i or I. With grains it tends to be the smaller case i. therefore ii would be two and iii would be three.
so in the case of the gr i ss it means 1/2 grain which converts to 30 mg (since 60 mg is 1 grain)
Hope you read this before you left for your exam :spin: 
Aug 30, '07Joined: May '06; Posts: 435; Likes: 87Quote from CT PixieAre you sure? The way my teacher explained it, the ss would mean an additional 1/2. So it would be 1 1/2 grains. I'm not saying that you are wrong. I'm just confused now.gr (grain) i (one) ss (half) is 1/2 half grain
the little i is the roman numeral for 1. You might see it as i or I. With grains it tends to be the smaller case i. therefore ii would be two and iii would be three.
so in the case of the gr i ss it means 1/2 grain which converts to 30 mg (since 60 mg is 1 grain)
Hope you read this before you left for your exam :spin:
Dixie 
Aug 30, '07Joined: Jan '07; Posts: 4,317; Likes: 4,901Quote from midcomOh wow! I was looking at the example in my book that read gr ss i which is 1/2 grain! Yes Dixie, you are absolutley correct. gr i ss is 1 1/2 grains which would be 90 mg. (1 full grain = 60 and 1/2 gr =30 so he answer would be 60 and 30 making it 90mg.Are you sure? The way my teacher explained it, the ss would mean an additional 1/2. So it would be 1 1/2 grains. I'm not saying that you are wrong. I'm just confused now.
Dixie
so, so sorry. It was really early when I read the post.
Oh and wanted to add that roman numerals are in upper cases and apothercary notation i in lower case.
Arabic number 1, 2, 3
Roman Numeral I, II, III
Apothecary Notation i, ii, iii 
Aug 30, '07Joined: May '06; Posts: 435; Likes: 87CT Pixie,
I guess we both learned something. I hadn't realized that ss i would mean 1/2 or that ii would be apothecary notation. I was just told it corresponded to the Roman numerals. I wondered why they didn't just use capital letters then. Now I understand.
Thanks. I am about to graduate from PN school in a couple weeks. How much you want to bet, I won't see this on the NCLEXPN? If I do, I have you to thank and hopefully this helps the original poster.
Now if this would only help with my Acute Med/surg GI & GU test this morning.
Dixie 
Aug 30, '07Joined: Jan '07; Posts: 4,317; Likes: 4,901Quote from midcomjust like IV is four..not 6..you read it 51=4, the ss i would be 1  1/2=1/2. Whenever there is a smaller number before a larger one (IV, IX, etc or ssii) you subtract the smaller from the larger to get the number.CT Pixie,
I guess we both learned something. I hadn't realized that ss i would mean 1/2 or that ii would be apothecary notation. I was just told it corresponded to the Roman numerals. I wondered why they didn't just use capital letters then. Now I understand.
Thanks. I am about to graduate from PN school in a couple weeks. How much you want to bet, I won't see this on the NCLEXPN? If I do, I have you to thank and hopefully this helps the original poster.
Now if this would only help with my Acute Med/surg GI & GU test this morning.
Dixie
I have 9mths and 6 days (14 hrs and 49 minutes)before I graduate PN school...but who's counting 
Sep 9, '11Joined: Sep '11; Posts: 11 grain=60mg and ss means half so iss will mean one and a half thus giving u 90mg of the dose

Sep 9, '11Joined: Mar '09; Posts: 3,522; Likes: 3,435Quote from kihara^^^ You do realize this thread is 4 years old and that the OP is likely gainfully employed somewhere?1 grain=60mg and ss means half so iss will mean one and a half thus giving u 90mg of the dose