please help with drug calc problem

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an infusion of D5 1/2 NS has 400 ml remaining the rate of flow is 16 gtts/min if the drop factor is 10 how many hours will it take this bottle to infuse

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I dont even know if I am on the right track. I usually try solve problems by using dimensional analysis.

I got to this question and I think it is reversed so Im not even sure how to set it up. This is what I have so far: trying to solve for h (time)??

I have been using the rate formula

Rate: volume/time: (400ml)/(h hrs) X (df) 10gtts oer ml/60X 16 gtts per min/1

The answer is supposed to be 4.16 but am not even getting anything near that .

I even tried by setting up 10 gtts perml/16 gtts per min to get 6 ml per min and then got stuck again.

Any help would greatly be appreciated.

Thanks

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Let me simplify it for you. I am soo bad at math but my IV calculations are usually on point and straight forward. First what you need to find out is how many ml/min. So you said its 10 drop factor so that meals it's 10 drops per ml. 16 drops = 1.6 ml so now you have 1.6ml/min. Total ml is 400ml so you divide that with 1.6ml and it will give you the minutes it will take. It's 250 mins. So now you divide that by 60 minutes (1 hour) and your answer is 4.166667. If you want to find out the minutes you would go .17(rounding up) multiplied by 60. Which would equal 10 mins. So your answer is 4 hours and 10 mins. Or 4.1666667. I hope that makes sense

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Thanks sooo much! I think if I would have got the first step I could have made it through. Sometimes I just dont know where to start.

You are awesome!

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You're welcome :)

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