Question

In: Nursing

v=v= Your protocols call for a dopamine infusion beginning at 5 micrograms per kilogram per minute....

v=v=

Your protocols call for a dopamine infusion beginning at 5 micrograms per kilogram per minute. You estimate that your patient weighs 190 pounds. Using a standard dopamine concentration of 800 mg in 500 mL, at what drip rate (in drops/minute) will you need to administer the infusion using micro-drip tubing?

Expert Solution

The dopamine initially started at 5micrograms per kilogram per minute

actual Patient body weight is 190 pounds and then it is converted to kilogram and it yields 86.18 kilogram

Then the dose is calculated according to the patient body weight

step1

88.18×5microgram = 430.9microgram per minute that is 0.43milligrams per minute

Dose is calculated from minute to hours by multiplying milligrams with 60 seconds = 25.8 milligrams per hours

dopamine to be infused per hour is 25.8 milligrams

step 2

First find out amount of medication in solution by dividing known amount of medication with total fluid solution in order to calculate milliliter per hour

Formula

Amount of medication in solution

---------------------------------------------- = amount of medication in milliliter

Total fluid solution of diluent

800mg

----------------= 1.6 mg in each ml

500ml

step3

Then calculate the milliliter per hour in order to find infusion time

Need of Dose per hour

-----------------------------------

Concentration in each milliliter

Dose is calculated per minute to hours by multiplying milligrams with 60 seconds = 25.8 milligrams per hours

25.8milligrams per hours is needed

----------------------------------------------= 16.125 ml per hour

1.6mg per milliliter

Then find out the infusion time by dividing the total volume to be infused with milliliter per hour to be infused in order to find the micr drip drop factor

500ml

-------------= 31 hours

16.125ml per hour

step4

Then find out drop factor for infusion

microdrip drop factor is 60gtt

total volume to be infused is 500 ml

Total time in minutes is calculated by multiplying total time infusion time with seconds

Total volume to be infused × micro drip factor

----------------------------------------------------------

Total time in minutes

31hours × 60 seconds = 1860 minutes

500 ml × 60gtt micro drip factor

--------------------------------------------=

1860 minutes

30,000 ml

--------------- = 16.12 micro drip per minute

1860 minutes

Answer is 16 .12 micro drip drops per minute

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