Help! Calculation question

[bowkerj]

Hi, I am reviewing some calculation questions and this is the first time I've ever done this. I don't understand the following question... can someone please explain?

The NP prescribed 35mg of Lasix as a one-time dose for injection. The medication is available as 20mg in 2mL. The nurse will give:

Help!

What does it mean "20mg in 2mL"? 2mL of what? I'm confused!!!

[DaFreak71]

Exactly. Do whatever is easiest for you. I have found that the basic formula (D/H X V) and Dimensional Analysis works great for me. Proportion really screws me up. I saw one of the posts on the other page and all I could think was HUH???? :chuckle Just do what is easier for you. Trust me, you'll get it. (I'm terrible at math, and I got it.)

LOL, that's what a full class of 60 students thought too! We have "math rules" at our nursing school that doesn't even allow us to use dimensional analysis, even though for many of us it would be infinitely easier. Rules are rules I suppose...

Adri