In: Nursing
PART B: The nurse is preparing to administer a 500mL 0.9% NaCl IV fluid bolus at 250mL/hr. The IV tubing contains a Micro Drip set with a drop factor of 60gtts/mL. In order to administer the fluid bolus at the correct rate, how drops per minute must the nurse observe in the chamber?
A) Weight of the patient is -176lbs = 176×0.45kg = 79.2kg
The safe dose range for this medication is 2.5-10mcg/kg/min = 0.0025mg - 0.01mg /kg /min
#. So, the safe dose for the patient would be :-
(0.0025×79.2 - 0.01×79.2/min) = 0.198mg/min - 0.792mg/min
The medication preparation delivered by pharmacy is 250mg of dobutamine in 500mL of D5W.
The drip is started at 60ml/hr
Firstly we should calculate the dose available in 60 ml by unitary method :-
500ml of D5W has 250mg of dobutamine
1ml of D5W has 250mg/500ml of dobutamine
Then 60ml of D5W has 250/500× 60mg = 30mg /60min
So in 1min, 0.5 mg of dobutamine is being given to the patient .
Yes ,this would be an acceptable action as it is the safe dose .
B) Total volume of fluid is 500ml
Flow rate is -250ml/hr
250ml in 1hr
1ml in = 1hr/250 = 0.004hr = 0.24min
Drop factor - 60gtt/ml means 60drops in 1ml
So, the nurse must observe 60drops of fluid with in 0.24 mins .