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Well it seems to me that if you have 100ml infusing in 45 minutes, and 15 minutes have passed (1/3 of the infusion time) I just break down the fluid into thirds, which is 33ml. 33ml x 3 = 99ml.
So we have approx 66 more ml's to infuse per gravity. The second part of the problem, I cannot remember the formula to figure out right now.
For the second part, I figured this way-
66ml x 15qtts/ml= 33qtts/min.
30 min
I do believe this works. You want to give 66 ml in 30 minutes, which means giving 2.2 ml/min. 2.2 X 15=33qtts/min.
Granted I have not done drip factors in approx 5 years, and I just worked a rough 12 hour shift, but I believe this is right.
you want to infuse 100 ml of metronidazole over 45 minutes via a left forearm peripheral angiocath #20gauge. at what hourly rate (ml/hr) do you program the pump?
the pump is malfunctioning after 15 minutes and you switch to a gravity set. how much of the volume of metronidazole has infused after 15 minutes (pre malfunctioning!)?
for the remaining volume, how many drops per minute do you count for the infusion to finish in the recommended infusion time of 30 minutes? drop factor is 15gtts/ml.
LuvScrubs2, BSN, RN
306 Posts
I am practicing once again for another math test in Pharmacology. I want to ask for some assistance:wink2: Than you!!!!!!
4. You want to infuse 100 ml of metronidazole over 45 minutes via a left forearm peripheral angiocath #20gauge. At what hourly rate (ml/hr) do you program the pump?
ml/hr = 100 ml/45min x 60min/1hr = 133ml/hr
a. The pump is malfunctioning after 15 minutes and you switch to a gravity set. How much of the volume of metronidazole has infused after 15 minutes (pre malfunctioning!)?
I got stuck here?????
I wasn't sure ????
b. For the remaining volume, how many drops per minute do you count for the infusion to finish in the recommended infusion time of 30 minutes? Drop factor is 15gtts/ml.