MATH>>Help please.. If i dont pass this class I wont get to start clinical!!!!!

Nursing Students Student Assist

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1)you must give 750mg of ASA. You have a 40z bottle contaiing gr. V per tsp. How many drams will you give?

2)You must give 7500 units of heparin sc. on the medication cart there are three vials. the first one is label 100 units/ml. the second label reads 1000 units/ml. the last label reads 20,000 units/ml. calculate hos much you would give each bottle.

3)give 0.25 g of tylenol. you have a solution of gr ii per 5cc. how many mL will you administer?

4)Give 2 g of amoxicillin per day in 4 equally divided doses. you have a bottle containing 250 mg per dram. 1)how many grams or illigrams will you give each dose? 2) how many cc will you give in each dose?

so the 250 mg per dram has no relevance?

ok i tried proble #4 b like this::

drug available/volume available = drug ordered/volume to administer

[color=lime]assuming 1 dram equals 4 cc

250 mg/[color=lime]4 cc = 2000 mg/ cc to administer

32 cc = cc to admin.

but we got to divide that into 4 equal doses as question asks:

32cc/4 doses = 8cc per dose.

i estimated 1 dram as 4 cc. that 250mg per dram is the drug available per volume and i used it as 250 mg/4cc - while doing calculations above.

Specializes in Pediatrics, Geriatrics, LTC.

first of all people on this site (rightfully so) will get upset if you flat out ask them to do your homework.

We had to do grains too, so I understand that part, I don't know why other people are confused over that, it's in all the dosage calc books...

Anyway, try to pull out of the problem what you need and don't need. The formula is always Dosage you want/dosage on hand equals what to give.

dr ordered keppra 1g po daily. you have 120tablet bottle of keppra labeled 500 mg per tab. how much should you give?

500mg over one tab = 1000mg over x tab = 2 tab

i dont know how to set up the 1g=1000mg ratio and perportion.. if that makes sense? Yesterday 06:57 PM

1 gram/500mg = 1000mg divided by 500mg = 2 you give 2 tabs.

2)you must give 7500 units of heparin sc. on the medication cart there are three vials. the first one is label 100 units/ml. the second label reads 1000 units/ml. the last label reads 20,000 units/ml. calculate how much you would give from each bottle.

i think i have this one but i am unsure. 1) 0.75 ml 2)13 ml 3)2.6 ml

please show "how" you worked out these problems (show your work). until i can see what you have done i can't see where you are going wrong.

also try to think through these in a logical manner to check if your answer could be correct or not.

for instance:

lets say your boss asked you to go to the store and purchase 7500 sheets of computer paper

at the store the computer paper comes with different amounts in the packages. the choices you have are:

100 sheets of paper / package

1000 sheets of paper / package

20,000 sheets of paper / package

if you need 7500 (seven thousand and five hundred) sheets of paper

1) how many packages would you need to buy if there are 100 sheets of paper in each package?

2) how many packages would you need if there are 1000 sheets of paper in each package?

3) how many packages would you need if there are 20,000 sheets of paper in each package?

best of luck

what is the name of the textbook you are using for dosage calculations? the textbook i had in nursing school was not laid out well at all. maybe a different book would be helpful for you. "medication administration made incredibly easy" is a book you might be able to find in your local barnes and noble bookstore. this website has a nice preview of some of the book.

http://books.google.com/books?id=m9dxfxoprg4c&pg=pt80&dq=%22medication+calculations+made+incredibly+easy&ei=tzdfsuaqmyauyatt9diecg#v=onepage&q=&f=false

i am a very visual learner and it helps me as well to think of the information in these math problems in the way that the nurse will actually be using it in the real world.

liquid medication will be measured into a dosage cup if it is an oral medication or drawn up into a syringe if it's a medication for an injection with measurements of:

1) units for the insulin syringe

2) mls for the 3ml syringe

3) mls for the 1ml tuberculin syringe.

see page 51 0f this med calc. book for the dosage cup and pages 61-64 for the different syringes.

http://books.google.com/booksid=lnnahak4sl0c&dq=calculations+for+medication+administration&printsec=frontcover&source=in&hl=en&ei=3ghesur5e4km8abv4s1x&sa=x&oi=book_result&ct=result&resnum=11&ved=0cckq6aewcg#v=onepage&q=calculations%20for%20medication%20administration&f=false

cc-- ml--drams--tsp--tbsp can be a liquid medication that you pour into a small clear medication cup. below is a list of the measurements on the sides of the cups we have at work.

drams do not exactly equal mls so you may see some books quote 1dram=5cc and some show 1dram=4cc. to get the correct answer for your tests you will need to know what conversion your instructor expects 1dram=5cc or 1dram=4cc.

the measurements on the small clear dosage cups that i use at work are.

also take a look at page 51 in this textbook preview to get a good picture of this.

30cc - 30ml [color=white] =[color=white]..2tbsp [color=white]...=[color=white]...1 fl oz - 8 drams[color=white]..............................

25cc - 25ml[color=#ccffff].......--------[color=#ccffff]----------------------------------[color=white].....................

-----------------[color=#ccffff]-------------[color=#ccffff]-----------3/4 fl oz - 6 drams[color=white]

20cc - 20ml[color=#ccffff]-------------[color=#ccffff]-----------------------------------

15cc - 15ml [color=#ccffff]-=[color=#ccffff]-1 tbsp [color=#ccffff]--=[color=#ccffff]-----1/2 fl oz - 4 drams

-----------------[color=#ccffff]-----1 dssp [color=#ccffff]----------------------------------

10cc - 10ml[color=#ccffff]-------------[color=#ccffff]------------------------------------

7.5cc - 7.5ml [color=#ccffff]-----------[color=#ccffff]---=[color=#ccffff]-----1/4 fl oz - 2 drams

5cc - 5ml[color=#ccffff]-----=[color=#ccffff]--1 tsp[color=#ccffff]-------------------------------------

-----------------[color=#ccffff]------------[color=#ccffff]----------------------------1 dram

2.5cc - 2.5ml[color=#ccffff]-=[color=#ccffff]--½ tsp[color=#ccffff]------------------------------------

hope this helps.

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