Help with iv math problem

hmmm....well i am not the best at this and doing it without a calculator----i get 25 cc hour....you have to double because of the concentration of the dose on hand...does this sound right

i get a rate of 10.....and dont understand why they are asking for VTBI

when no end dose is stated....

so basically you want 2ml/hour to equal 10mg/hour.

order: diltiazem 125 mg in 100 ml d5w at 10mg/hr iv

available: infusion pump; vial of diltiazem labeled 5 mg/ml

find the rate and vtbi:

rate: ________

dose desired: 10mg/hour

dose on hand: 5mg/ml

10mg/hour x 1ml/5mg =

1ml/hour

(patient is getting this much of the

diltiazem solution

per hour)

vtbi: ________

im confused why would you only give 1ml an hour when the vial is 5mg/ml. and the order is 10 mg/hour

This is an intensive care medication given for SVT and atrial fib. It is often titrated and given in very small amounts, goes by the dilution of the diltiazem in its diluentant and then resulting IV solution which is usually a small piggyback bag.

I know that it just seems the dose should be .1 ml an hour instead of 10

This is an intensive care medication given for SVT and atrial fib. It is often titrated and given in very small amounts, goes by the dilution of the diltiazem in its diluentant and then resulting IV solution which is usually a small piggyback bag.

i, too, know what it is....but the volume of the concentrate is so large compared to the volume of diluent, doesnt it need to be taken in to account? having not worked ICU, i have never seen a pump that would be set up that way....to me VTBI is set to deliver a prescribed dose....not a rate....which is accomplished otherwise......

order: diltiazem 125 mg in 100 ml d5w at 10mg/hr iv

available: infusion pump; vial of diltiazem labeled 5 mg/ml

find the rate and vtbi:

rate: ________

dose desired: 10mg/hour

dose on hand: 5mg/ml

10mg/hour x 1ml/5mg =

1ml/hour

(patient is getting this much of the

diltiazem solution

per hour)

vtbi: ________

thank you i think this is it because that is exactly what i got.

order: diltiazem 125 mg in 100 ml d5w at 10mg/hr iv

available: infusion pump; vial of diltiazem labeled 5 mg/ml

find the rate and vtbi:

rate: ________

dose desired: 10mg/hour

dose on hand: 5mg/ml

10mg/hour x 1ml/5mg =

1ml/hour

(patient is getting this much of the

diltiazem solution

per hour)

vtbi: ________

thank you very much i think i got it now...

order: diltiazem 125 mg in 100 ml d5w at 10mg/hr iv

available: infusion pump; vial of diltiazem labeled 5 mg/ml

find the rate and vtbi:

rate: ________

dose desired: 10mg/hour

dose on hand: 5mg/ml

10mg/hour x 1ml/5mg =

1ml/hour

(patient is getting this much of the

diltiazem solution

per hour)

vtbi: ________

something confuses me here, if the availible line states you have a vial of diltiazem containing 5mg/ml are they not implying that you are adding x number of ml of this vial to the bag of 100 ml of d5w. in which case it would be 105 ml of fluid to be infused? (5mg/ml= 25mg/5ml) or am i just tired....