In: Biology
MD ORDERS: Dobutrex continuous infusion at 22ml/hr. The IV bag is labeled 750mg Dobutrex in 500ml of IV fluid. Patient weighs 58kg. Recommended dose is 2.5-05mcg/kg/min.
a. How many mcg/kg/min will the patient receive? (show work)
b. Is the dose within the theraputic range?
a 9.5 mcg/kg/min
first determine how many milligrams/hour is being delivered by the IV pump. The rate of the IV (cc/hr) is divided by the volume of the IV bag (mL available), then multiply this result by the total amount of medication (mg) in the IV bag.
| 
      
rate        | 
x dose available | 
becomes
| 
 22mL/hr  | 
x 750mg | 
Next, after the milligrams/hour has been determined, use the next formula to convert from milligrams/hour to mcg/kg/min.
| 
 mg    | 
x 1000 / kg | 
Return to:which = 9.5 mcg/kg/min
b Yes, the dose is with in the range as the dosage is 0.5 to 20 mcg/kg/min