I start back to school in 2 weeks. We have a mandatory must pass at 85% math exam schedule 3 days into the semester. I am working on a review packet and struggling with two of the questions. I have answers for both, but not sure they are right.
Here is the first question:
A 1000 mL bag of IV solution was hung at 0700 to run at 100 ml/hour. At 1300 the bag is 1 hour behind. What would the new rate in L's per hour be in order for the bag to finish on time? What percent increase would this be?
Here is what I have so far:
If it is running at 100ml/hr than it should run for 10 hours and be done at 1700.
If it is one hour behind than at 1300 only 500ml had infused (should be 600ml)
X = 500ml
1hr = 4hrs
x=125mL/hr or 25% increase
2nd question:
Order DS1/2 NS at 75mL/hr
A 1000 ml bag was jung at 0530. Time tape strip on the bag indicates the bag will be due out at 1830. At 0930 the nurse find that the IV is 2 hours ahead. Recaluclate the new drip rate so that the bag will end on time with tubing that delivers 15gtt/ml.
Here is what I have:
75ml/hour=1.25ml/min
current=15gtt = x
1ml =1.25ml or 19gtt/min
If it were running on time then 300mL would be infused. Since it is 2 hours ahead 450 ml has infused leaving 550 in the bag with 9 hours remaining. 550/9hrs=61ml/hr or 1 ml/min.
15 gtt = X
1ml = 1ml/min OR 15 gtt/min would be the new rate.
Any help with confirming or correcting my math would be greatly appreciated! Thanks!!
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I start back to school in 2 weeks. We have a mandatory must pass at 85% math exam schedule 3 days into the semester. I am working on a review packet and struggling with two of the questions. I have answers for both, but not sure they are right.
Here is the first question:
A 1000 mL bag of IV solution was hung at 0700 to run at 100 ml/hour. At 1300 the bag is 1 hour behind. What would the new rate in L's per hour be in order for the bag to finish on time? What percent increase would this be?
Here is what I have so far:
If it is running at 100ml/hr than it should run for 10 hours and be done at 1700.
If it is one hour behind than at 1300 only 500ml had infused (should be 600ml)
X = 500ml
1hr = 4hrs
x=125mL/hr or 25% increase
2nd question:
Order DS1/2 NS at 75mL/hr
A 1000 ml bag was jung at 0530. Time tape strip on the bag indicates the bag will be due out at 1830. At 0930 the nurse find that the IV is 2 hours ahead. Recaluclate the new drip rate so that the bag will end on time with tubing that delivers 15gtt/ml.
Here is what I have:
75ml/hour=1.25ml/min
current=15gtt = x
1ml =1.25ml or 19gtt/min
If it were running on time then 300mL would be infused. Since it is 2 hours ahead 450 ml has infused leaving 550 in the bag with 9 hours remaining. 550/9hrs=61ml/hr or 1 ml/min.
15 gtt = X
1ml = 1ml/min OR 15 gtt/min would be the new rate.
Any help with confirming or correcting my math would be greatly appreciated! Thanks!!