Pharm ???? grains converted to mg.

[nursejackie2010]

Hi, stuck on a problem (gr iiss to mg) I know how to convert grains to mg, but this one problem I'm:confused: please assist. Thanks in advance.:)

[Orca, ADN, ASN, RN]

Since gr iss=100mg, I presume the answer is 200mg.

This question brings back memories. In my second semester of nursing school I was about to give my first injection, which made me nervous enough. Then I saw that the physician had written the order in grains. Fortunately I had brought my conversion table along.

[Mike the Nurse]

If my memory serves me right (and its been a long time since I did anything with grains). You are converting 2.5 grains to mg. 1 grain = 64.8 mg, so if I am correct the answer should be 162mg

[celclt]

griiss = 150 mg (2.5 gr x 60 mg/gr = 150 mg) -hth!

oops:

i =1 and ss= 1/2 so it is 2.5 gr (I had to take latin in hs)

[Little Panda RN, ASN, RN]

ii = 2, ss = 1/2 so you would have 2 1/2 grains

There are 65 mg per gr so you would have 162.5 mg in (iiss grains).

At least this is the way I figured it!

[nursejackie2010]

Thanks for the responses. It helped:up:

[mamamerlee, LPN]

I always remember that a plain, regular aspirin is 5 gr/325mg. Roughly 1 gr/65 mg. Therefore iiss (2 l/2) gr / 162.5 mg

But who is still using grains? Shouldn't all those old docs have died (or at least retired) by now????

[~Mi Vida Loca~RN, ASN, RN]

Interesting some say 65 and some say 60 mg per grain. Last semester when we went over this we were told 60grains per mg.

[classicdame, MSN, EdD]

JC does not like to see "iss" and similar entries in charts because it leads to ----guess what!! Confusion and possible med errors. I will be glad when grain orders are extinct.

[dthfytr, ADN, LPN, RN, EMT-B, EMT-I]

I always remeber that 10 grains of Aspirin = 650 mg, hence 1 grain = 65 mg, or else I've got years of incident reports to catch up on.

[dthfytr, ADN, LPN, RN, EMT-B, EMT-I]

Unit conversion dot org says 10 grains = 647.989100002 milligrams.

[NurseLoveJoy88, ASN, RN]

I was taught 60 mg to 1 grain. This is interesting...