Calculate the amount of IV fluid to be added to the volume control chamber
Ordered:D5 0.33% NaCl at 66 mL/hr with Fortaz 720 mg every 8 hours to be infused over 40 minutes by volume control set
On hand:Fortaz 1g/10 mL
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To calculate the amount of IV fluid to be added to the volume control chamber, we will need to consider the infusion rate and the volume of Fortaz to be infused.
First, let's calculate the infusion rate for Fortaz. The ordered dose is 720 mg every 8 hours to be infused over 40 minutes.
To calculate the infusion rate in mL/hour, we need to convert the ordered dose of Fortaz into mL using the given concentration of Fortaz on hand (1g/10mL).
720 mg = 0.72 g (since 1 g = 1000 mg)
0.72 g / 10 mL = 0.072 g/mL
Since the Fortaz infusion is to be completed over 40 minutes, we need to convert this into hours:
40 minutes = 40/60 = 0.67 hours
Now, we can calculate the infusion rate:
Infusion rate for Fortaz (mL/hour) = Dose (g/mL) / Time (hours)
Infusion rate for Fortaz = 0.072 g/mL / 0.67 hours
Infusion rate for Fortaz ≈ 0.1079 g/mL/hr
Next, let's calculate the total volume of fluid required for the entire infusion period. We can use the infusion rate of Fortaz along with the given rate of D5 0.33% NaCl (66 mL/hr) to determine the volume of fluid required.
Total volume of fluid required (mL) = Total infusion time (hours) × Infusion rate (mL/hour)
Total volume of fluid required = 0.67 hours × 0.1079 g/mL/hr
Total volume of fluid required ≈ 0.0723 mL
Therefore, approximately 0.0723 mL of IV fluid should be added to the volume control chamber.