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I know I learned this in school, but when I was on the floor it confused me for some reason. I had a bag of Zosen that was 100ml and it said to infuse over 30 minutes so I set the pump to admin 100ml (RTBI) at a rate of 100. I understand the amt to be infused, but I was told to set the rate at 100? Why 100? What am I missing here? Help please.
If you are administering 100ml in 30min the pump should be set to 200ml per hr. That's 100ml in 30min. I had the same problem at clinicals once and will never forget it because I had the biggest brain-fart infront of the pt's family! Embarassing, but I will never forget!
The thing is she told me to set the rate at 100, not 200. I don't get it.
you set it at a rate of 100 and total amt of 100ml. that will run in a hour. If you wanted the zosyn to run in an half hour than it should have been run in at 200. However in my facility I believe zosyn is a 50ml bag so then you would set the rate at 100cc hour and total infused would be 50.
200ml is the correct answer
You have to remember that most IV pumps are programmed to run an IVPB over an hour. Also, when programming the pump for an infusion time that is less than one hr, you only have to determine the infusion rate. Leave the volume to be infused alone when actually setting the pump because it doesn't change(only when figuring out the infusion rate, as you'll see below).
So, the order calls for a 100ml bag to be run over 30mins. You need to figure out what the volume of the bag would be if the ordered infusion time was 60mins(because the IV pump is programmed to run meds over an hour). And what you do to one factor, you have to do the same to the other. So if 30mins x 2=60mins, then multiply the volume of the IVPB bag x2: 100ml x2= 200ml. Thus, 200ml is what your infusion rate will be and 100ml is the volume to be infused.
Sounds confusing, but honestly the math is pretty simple once you get the hang of it.
SoulShine75
801 Posts
I know I learned this in school, but when I was on the floor it confused me for some reason. I had a bag of Zosen that was 100ml and it said to infuse over 30 minutes so I set the pump to admin 100ml (RTBI) at a rate of 100. I understand the amt to be infused, but why was it infused at 100? I guess it threw me off and I'm not getting it something. Help please.