need help in math IV therapy

[edythe]

The physician orders Pipercillin 1g IVPB q12 hr. Available to nurse is 100ml of D5W with 1000mg of pipercillin with instructions to infuse over 30 minutes. The IV tubing delivers 15gtts/ml. the rate of infusion will be how many gtts/min.

[Amer Yousaf]

First of all thanks for adding me as friend. I think 3.33ggt/min. If I am right then confirm by replying...

[edythe]

it is 33.33 but I figure it out but thanks so much. I got another one for you ok. the physician order cardizem 5mg/hr IVPB. available is 100ml NS with 125mg cardizem. the rate of infusion will be how many ml/hr?

[Amer Yousaf]

;)I think 4ml/hr.

[Amer Yousaf]

I calculated it as 125/100=1.25mg/ml, so for 5mg/hr, 5/1.25=4ml/hr. Am I right?

[Amer Yousaf]

Hi, come on Skype. I will give you very easy tips for calculating IV therapy.

[LadyinScrubs, ASN, RN]

the physician orders pipercillin 1g ivpb q12 hr. available to nurse is 100ml of d5w with 1000mg of pipercillin with instructions to infuse over 30 minutes. the iv tubing delivers 15gtts/ml. the rate of infusion will be how many gtts/min.

order: 1g (= 1000 mg) q 12 hrs

have on hand = 1000 mg in 100 ml

infuse over 30 minutes using a 15 gtts/ml set.

how many gtts/min ___?

first thing to determine is what equipment will you be using...a drip system or an electronic pump.

you will be using a drip set (which is in gtts/min) not an iv pump (which is ml/hr). the give away is the drip tubing rate of 15gtts/min. you will not use an iv tubing rate if you have a iv pump. to solve using the iv tubing gtts/min use the following

formula is

# ml x # drip rate

# minutes 1 ml

100 ml x 15 gtts

30 min 1 ml [reduce the fraction]

100 ml x ____ gtts

2 min 1 ml [reduced (remove ml) and do math]

50 x gtt = 50 gtts/min

min 1

[LadyinScrubs, ASN, RN]

. i got another one for you ok. the physician order cardizem 5mg/hr ivpb. available is 100ml ns with 125mg cardizem. the rate of infusion will be how many ml/hr?

here you will be using an electronic iv pump.

order 5 mg/hr in an ivpb

have on hand: 100ml with 125 mg cardizem

using the electronic pump, how many mls an hr will the pt receive

125 mg/100 ml = 5 mg 1 hr / x ml or

125 mg x 5 mg per hr

100 ml ___ ml

= 4 ml/hr

[IVRUS, BSN, RN]

The physician orders Pipercillin 1g IVPB q12 hr. Available to nurse is 100ml of D5W with 1000mg of pipercillin with instructions to infuse over 30 minutes. The IV tubing delivers 15gtts/ml. the rate of infusion will be how many gtts/min.

Your best bet is to follow this formula:

First thing is to find flow rate. The flow rate is what you are setting your pump to. Pumps work in mls per hour.

So, in this case, 100/0.5 = 200cc/hr.

Now, since you do NOT have a pump, and you want to calculate gtts/per minute so that the medication will go in in the appropriate time frame follow this formula:

If your tubing is 10gtts/ml, divide your flow rate by 6. So, 200/6 = 33.3 gtts/minute

If your tubing is 15gtts/ml, divide your flow rate by 4. So, 200/4 = 50 gtts/minute

If your tubing is 20gtts/ml, divide your flow rate by 3. So, 200/3 = 66.6gtts/minute

This doesn't require a lot of memory power either, if one just thinks of a standard clock. When looking at a clock, how many 10 second intervals are there in a minute? 6

how many 15 second intervals are there in a minute? 4

how many 20 second intervals are there in a minute? 3

And, if you have mini, or micro gtt tubing (60gtts/ml) whatever your flow rate is, will be your gtts per minute.

Hope this helps.

[BBRANRN2013, ASN, RN]

100 ml times 15 gtt 50 gtt/min

_______ ______ equals

30 min 1 ml

[notgivingup1 RN]

Perhaps my math study guide will help you with IV therapy......Best of Luck....:):):)

nclex math study guide.doc

[Smith.C74]

The physician orders Pipercillin 1g IVPB q12 hr. Available to nurse is 100ml of D5W with 1000mg of pipercillin with instructions to infuse over 30 minutes. The IV tubing delivers 15gtts/ml. the rate of infusion will be how many gtts/min.

(100mL/30 min)=3.33mL/min

3.33mL/min * 15gtt/mL=50 gtt/min