grams to grains

[silvienurse]

Hi

Please help; bit confused and have an exam coming up really soon........isn't 60mg = to 1grain?

O.k.

let me run this by you; what is 0.3grams converted to ______ grains??

and how did you convert it?

[pie123]

Hi

Please help; bit confused and have an exam coming up really soon........isn't 60mg = to 1grain?

O.k.

let me run this by you; what is 0.3grams converted to ______ grains??

and how did you convert it?

Yes, 60 mg = 1 grain, but you do not need that conversion equation. Instead, you need this one: 15 gr (grains) = 1 gm (gram). Here's how to set the problem up: 0.3 gm x 15 gr / 1 gm = 4.5 gr

You will notice that once you set the problem up, the grams cancel out, and you are left with grains. I remember having a similar one like this in school, and at first it really got me. I had to go back to my Clinical Calculations book to be able to answer your question. Here's the one that I referenced so that I could answer your question:

5.5 gm = _____ gr. Here's how to do it: 5.5 gm x 15 gr / 1 gm = 82.5 gr. I just wanted to throw that one in there FYI :-)

There are several of these types in my book. If you need more help, let me know. Good luck.

[mwray1]

Hi

Please help; bit confused and have an exam coming up really soon........isn't 60mg = to 1grain?

O.k.

let me run this by you; what is 0.3grams converted to ______ grains??

and how did you convert it?

Hi Silvienurse,

Here is how I would work your math problem. Yes 60mg = 1 gr. 1 gm = 1000mg, so 0.3 gm is 3 tenths of a gm which should = 300mg. 300mg divided by 60 mg = 5 so 0.3gm = 5gr.

0.3gm = 300 mg 60mg = 1gr 300mg

-------X 1 gr = 5gr

60mg

I hope this is understandable, and helps you. :imbar

mwray1

[silvienurse]

Thanks so much Pie123 and Mwray1....this makes much better sense to me know...I can see it now.....thanks Mwray1 I also worked it your way but instructor told me it wasn't correct......thanks

Hopefully ya'll will be on line either tonight and / or tomorrrow in case I run into another snag.......

and thanks Pie123 for the website......

[silvienurse]

Now I'm beginning to think I'm seeing things (scary) hahahahaha too much nursing school here......I could've swore I saw a website for conversions of metrics; oh well, must've been dreaming or something (not enough sleep here lately).......later and thanks again

[pie123]

Now I'm beginning to think I'm seeing things (scary) hahahahaha too much nursing school here......I could've swore I saw a website for conversions of metrics; oh well, must've been dreaming or something (not enough sleep here lately).......later and thanks again

You're welcome. I hope it helped. The book that I have is called Clinical Calculations-A Unified Approach. The authors are Joanne M. Daniels and Loretta M. Smith. The ISBN is 0766801675. Do you have a list of conversions?

[pie123]

Now I'm beginning to think I'm seeing things (scary) hahahahaha too much nursing school here......I could've swore I saw a website for conversions of metrics; oh well, must've been dreaming or something (not enough sleep here lately).......later and thanks again

Here are a list of conversions if you don't already have them:

60 mg = 1 gr (grain)

1 gram (gm) = 15 gr

1 liter = 1000 ml

3 tsp = 1 tbsp

2 tbsp = 1 oz.

1 gm = 1000 mg

1 kg = 2.2 lb

1 ml = 15-16 minims

1 mg = 1000 mcg

1 oz. = 2 tbsp.

8 drams = 1 oz.

30 ml = 1 oz.

15 gm = 4 drams

16 oz = 1 lb.

8 oz. = 240 ml (1 glass or measuring cup) 6 oz. = 1 teacup

60 drops = 1 tsp

2 pints = 1 qt

16 fluid oz = 1 pt

1 fluid dram = 60 minims

1 fluid oz. = 8 drams

1 ml = 1 cm

4 drams = 1 tbsp

75 minims = 1 tsp

4 ml = 1 dram

5 ml = 75 minims

15-16 minims = 15 drops

30 gm = 1 oz.

1000 ml = 32 oz

32 oz = 1 qt

A lot of these you will probably never use. In fact, I cannot even remember ever using many of them.

[silvienurse]

Thanks Pie123 for the conversion list; the minims is also on our test; do you ever use those?? Instructor said only reason they're on the exam is because the State Boards still use them as possible test question(s).

Thanks

[RosesrReder, BSN, MSN, RN]

Welcome to the site, enjoy your stay and best wishes to you!

[pie123]

Thanks Pie123 for the conversion list; the minims is also on our test; do you ever use those?? Instructor said only reason they're on the exam is because the State Boards still use them as possible test question(s).

Thanks

I have never used minims or drams. I have used a conversion equation to calculate the drip rate for certain IV blood pressure medications. I used to STRESS out in school when we had those stinkin' math tests!

On my NCLEX exam (the first time) I had some math problems similar to the one that you were asking about. I also had some that required me to calculate an IV flow rate.

[suzanne4, RN]

Just to throw a wrench into your answers, 1 grain can either be 60 mg or 65 mg. Take a look in any calculations book, especially one that focuses on the old apothecary method.

5 grains of aspirin or tylenol is 325 mg, not 300 mg. 5 grains of ferrous sulfate is 325 mg.

Same thing for 10 grains of tylenol or aspirin, they are 650 mg.

Good luck with schooling..................:balloons:

[Daytonite, BSN, RN]

Y'all make me feel old. 30 years ago we had doctors ordering medications by grains and grams and things like cough syrup were ordered by drams. We had to know how to do these conversions. Some of this old stuff takes a long time to die out. In particular, we used to give a lot of Chloral Hydrate for sleep and older doctors would order it by grains. They did the same when they ordered barbiturates for sleep as well. A liquid drug called SSKI (Potassium Iodine) was given by drops so you had to know how many drops, or minums there were in a mL. I daresay that by the time y'all are ready to retire from your nursing careers that these old measurements will only be a nostalgic memory.