confused about saunders compre review

somberhue · Sep 1, 2007

you know what?? your very right!!!! i didnt noticed that before!!!

i must say you have a great eye!!! but im sorry coz i also didnt know the explanation for that.

Eirene, ASN, RN · Sep 1, 2007

that's too funny. when i first read your post, i looked in my book and you were exactly right! i kept on waiting for someone to respond that knew the answer, because i sure don't!

ALEXIS VALIENTE · Sep 2, 2007

that's too funny. when i first read your post, i looked in my book and you were exactly right! i kept on waiting for someone to respond that knew the answer, because i sure don't!

im also waiting.. im just hoping that someone will clear this thing up since many nurses are recommending this book....

hope for the explanations of other rn out there!!!

thanks!!!

somberhue · Sep 2, 2007

i just happened to scan some of the pages of saunders comprehensive review for rn nclex exam and it just made me confused!!
on page 187 box 17.3, it is said that 1 grain is equal to 60 mg.... but what confuses me is that below it says 15 grains is equal to 1000 mg...
no matter what calculation i do... i just cant seem to get the answer 1000mg when i multiply 15grains and 60 mg...
maybe someone here knows the explanation... thanks!!

i am really hoping that someone will explain this one coz i think this is a matter with worth ( if not that serious) since i read some posts of different nurses here recommending the use of this book.

i would suggest alexis that you contact elsevier thru email..

does anyone knows the email add of elsevier???

CT Pixie, BSN, RN · Sep 2, 2007

At first I was thinking..ok well NORMALLY 1 grain is 60mg but at times one grain is 65mg so this is probably why when she muliplies 60 X 15 she can't get 1000. So I did it as 1 grain is 65mg..and its still not 1000! Its only 975. In order to get 15 grains to equal 1000mg..it would have to be one grain = 66.66666mg..

Hope someone out there has the rational for this. Or perhaps with many other books I've seen its a typo.

iHeartNICU · Sep 2, 2007

Hmmm, the calculations book we use for school says the same thing. How weird is that? Well, actually this book says 15 (16) grains=1000 mg. 15 grains at most is 975 mg and 16 grains is 1040 mg at most. No matter if you use 60, 64, or 65 mg for the conversion nothing equals 1000. We just had a skills test w/ med calculations and our instructor said just to go by 60 mg=1 grain. Nothing was even mentioned about that 1000 mg =15 grains. Weird.

Eirene, ASN, RN · Sep 3, 2007

okay. i just spoke with one of my nursing friends. i don't know if this is right... but here it is:

grain is an apothecary method and mg and grams are metric. there is a "little shade of grey" when you convert one into the other.

makes no sense, but that was the answer that was given. :)

iHeartNICU · Sep 4, 2007

interesting....who knew drug calculations were "grey." I don't think my insturctors would buy that if I said ooops, i made a mistake but it's ok, it's a grey area. HAHA. Anyways, I guess that is the best answer so far.

somberhue · Sep 4, 2007

i never knew there is a " grey" area when it comes to drug calculations but i must agree with 1inamilyon that so far it is the best explanation here..

but dont you think that "shade of grey" is a little perilous?? i mean this is drug dosage that we are talking about and an increase or decrease might be fatal... am i right or i was just becoming paranoid?? heheheheh

somberhue · Sep 7, 2007

i just happened to scan some of the pages of saunders comprehensive review for rn nclex exam and it just made me confused!!
on page 187 box 17.3, it is said that 1 grain is equal to 60 mg.... but what confuses me is that below it says 15 grains is equal to 1000 mg...
no matter what calculation i do... i just cant seem to get the answer 1000mg when i multiply 15grains and 60 mg...
maybe someone here knows the explanation... thanks!!

still no explanation??? well it must be really hard!!!! hiihihihihih!!!

i was really hoping to read an explanation to this post!!!

well, it seems that no one really knows!

CT Pixie, BSN, RN · Sep 7, 2007

I think it must be a typo..