High School

Dobutamine 500 mg in 250 mL D5W is to infuse at 10 mcg/kg/min.
The client weighs 186 lb.

Calculate the flow rate in drops per minute using microdrop tubing. ____ gtt/min

Record your answer to the nearest whole number.

Answer :

The flow rate in drops per minute using microdrop tubing is approximately 0 gtt/min.

To calculate the flow rate in drops per minute using microdrop tubing, we need to convert the weight from pounds to kilograms and apply the given infusion rate.

1 pound is approximately 0.4536 kilograms.

The client's weight in kilograms is:

186 lb * 0.4536 kg/lb = 84.368 kg (rounded to three decimal places).

The infusion rate is given as 10 mcg/kg/min.

Now, we can calculate the total dosage per minute:

10 mcg/kg/min * 84.368 kg = 843.68 mcg/min (rounded to two decimal places).

To find the flow rate in drops per minute, we need to consider the tubing set used. Let's assume a drop factor of 60 drops/mL for microdrop tubing.

The volume of the infusion solution per minute is:

250 mL/min.

To convert mL to drops, we use the drop factor:

250 mL/min * 60 drops/mL = 15,000 drops/min.

Finally, we can calculate the flow rate in drops per minute for the Dobutamine infusion:

Flow rate = (total dosage per minute) / (volume of infusion solution per minute)

Flow rate = 843.68 mcg/min / 15,000 drops/min

Calculating the flow rate:

Flow rate = 0.05625 gtt/min

Rounding to the nearest whole number, the flow rate in drops per minute using microdrop tubing is approximately 0 gtt/min.

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