Question

You have an order to start an infusion of Amiodarone at 1 mg/min for the first six hours. You have 500 mL of D5W with 900 mg of Amiodarone. What is your rate per hour on your IV pump? The physician's order reads to start an epinephrine drip at 0.15mcg/kg/min. Your patient weighs 330 pounds. You have a 50cc bag with 6 mg of epinephrine. What is your rate per hour? You are to start a Heparin drip at 500units/hour. You have a bag labeled 25,000 units of Heparin in 500 cc. What do you set the IV pump at? You are to start a nitroglycerin drip on a patient at 5 mcg/ min. You have a bag of 200 mg of Nitroglycerin in 250cc. What is your rate per hour? You have a bag of Diltiazem 125 mg in 100cc 0.9 Normal Saline. You have a physician's order to infuse Diltiazem at 15 mghr. What is your rate per hour?

Answer 1

Formula to calculate Flow rate

Flow rate= Total volume ×15÷Total time to be administered ×60

●Given

Amiodarone 1mg/minute

so in 1 minute It will be 60 mg

in 6 hours it will be 360 mg

There is mixture of 900 mg in 500 ml D5W

IIn a simple way to calculate 250 ml =450 mg

then ?=360 mg

360×250÷450= 200 ml

Flow rate =Total volume ×15÷6×60

=200×15÷6×60=8.3

The flow rate eill be 8 drops / minute for 6 hour and

200×15÷1×60= 50 drops per hour

●weight 330 pound=149.6 kg

drip rate 0.15mcg/kg/min

so 149.6 kg =22.44 or 22 mcg/kg/min

in 1 hour it will be 22×60=1320mcg

when 50cc=6000mcg Epinephrine (6mg)

than 1320=?

1320×50÷6000=11

It will be11cc

no flow rate is equal to

11×15÷1×60

=2.75 or 3 drops per hour

●Given

to be administered 500 units in 1 hour

available 25000 units in 500cc

when when 25000 unit=500cc

then 500 units=??

500×500%25000

=10 cc to be administered in a hour

now 10×15÷1×60=2.5 or 3 drops per hour

●Nitroglycerine 5mcg/min to be administered

Available 200 mg in 250 cc(20000mcg microgram in 250 cc)

200000mcg=250cc

5mcg=?

250×5÷200000=0.006cc

now

FR= 0.006×15÷1×60

=0.0001 drops per hour.

● Given

available 125mg in 100cc NS

15mg=?

100×15÷125=12 cc

To be transfused 15mg/hour

FR=12×15÷1÷60

=3 drops per mminute.