can someone please help me with this problem...i got 4ml as the answer

A vial contains 2 GM of powder. After being reconstituted with 4cc saline, how many mls are needed to administer a 500mg dose?

thank you for your response!

500mg * 1gm / 1000mg * 4ml/2gm = 1 ml

a vial contains 2 gm of powder. after being reconstituted with 4cc saline, how many mls are needed to administer a 500mg dose?

dose desired:

500 mg

dose on hand:

2 grams

conversion factor:

1 gram = 1000 mg

also, be aware that 1 cc = 1 ml

dose desired divided by dose on hand multiplied by any amount the dose on hand comes in gives you the quantity you will give.

500 mg

(dose desired)

/2 grams

(dose on hand)

x 4 ml

(amount the dose on hand comes in)

/1 x 1 gram/1000 mg

(conversion factor - to convert grams to mg)

=

1 ml

(amount you will give)

you will find weblinks to tutorials on post #2 of this sticky thread: https://allnurses.com/general-nursing-student/nursing-math-thread-264395.html - the nursing math thread

a vial contains 2 gm of powder. after being reconstituted with 4cc saline, how many mls are needed to administer a 500mg dose?

dose desired:

500 mg

dose on hand:

2 grams

conversion factor:

1 gram = 1000 mg

also, be aware that 1 cc = 1 ml

dose desired divided by dose on hand multiplied by any amount the dose on hand comes in gives you the quantity you will give.

500 mg

(dose desired)

/2 grams

(dose on hand)

x 4 ml

(amount the dose on hand comes in)

/1 x 1 gram/1000 mg

(conversion factor - to convert grams to mg)

=

1 ml

(amount you will give)

you will find weblinks to tutorials on post #2 of this sticky thread: https://allnurses.com/general-nursing-student/nursing-math-thread-264395.html - the nursing math thread

thank you! i dont know why i have am having a hard time with this kind of math