Question

Order: 600 mL DsW IV to infuse in six hours. At what rate in mL/h will you set the pump? a) 100 mL/h b) 10 mL/h c) 1.7 mL/h d) 60 mL/h

Answer 1

1. Given data

Total fluid = 600 mL of D5W

Total time for infusion= 6 hrs

Rate of infusion (mL/hr)= total fluid (mL)/ total time (hr)

= 600 mL/6hr

= 100 mL/hr

Thus answer is a) 100mL/hr

2. Given data

Infusion rate (drop rate) = 30 gtt/min

Drop factor = 20 gtt/mL

We can calculate flow rate in mL/ hr from drop rate formula

Set up :

( Volume rate ( mL/hr)/60 min) 60 min) * drop factor / 60 min= infusion rate(gtt/mL)

Calculate volume rate from this calculation

Consider volume rate as X, put other given data in the equation

( X /60)* 20 = 30

X = (60 * 30)/20 = 90 mL/hr

Rate flow in mL/hr = 90

Answer is d) 90mL/hr