Quote from BS Nursing Student
I thought that there were 15 gtt in one ml. One instructor told me a couple of days ago that it is 60 gtt per ml per Peds. I think that she is wrong. Any thoughts?
micro tubing, which is not as common as it once was, has this little metal stick in the drip chamber. it takes 60 drops to make a ml. where i work, the drip chambers were green. the package was labeled 60gtts/ml.
macro tubings have a white drip chamber where i work and huge drops fall from the drip. they are labled 15gtts/ml bc only 15 of these huge drops are needed to make an ml.
if someone needs nss at 25 ccs an hour....
using a micro, it would come to 25 drops a minute. (always the same #)
using a macro, you divide 25 by 4 and you would get about 6 drops a minute.
now, logic tells you to use the micro drip bc you can set 25 drops a minute better than 6....6 may even cause the line to clot off...it's just too slow.
on the other hand, if the pt is ordered 100 ccs an hour....
using micro, that would be 100 drops a minute (always the # with micro)..which would be hard to manually set!!!!!
but with macro,
you divide 100 by 4 (bc 15 goes into an hour 4 times) and you get 25 drops a minute!
so in this case, the tubing of choice would be macro!