Final answer:
The infusion rate for Ancef 2 gm IVPB in 100 mL D5W over 45 minutes is 133.33 mL/hr. IV solutions like dextrose are used for rehydration, and flow rates must be adjusted when swapping fluids with different viscosities.
Step-by-step explanation:
To calculate the infusion rate for an order of Ancef 2 gm IVPB in 100 mL D5W to be infused over 45 minutes, you would use the formula: (Volume in mL) / (Time in hours) = Infusion rate in mL/hr. Given the order specifies 100 mL to be infused over 45 minutes, first convert the minutes to hours by dividing 45 minutes by 60 (45/60 = 0.75 hours). Then, divide the volume of the IV by the time in hours (100 mL / 0.75 hours = 133.33 mL/hr). Therefore, the infusion rate is 133.33 mL/hr.
When a human patient is dehydrated and requires rehydration intravenously, they are often given solutions like normal saline or a dextrose solution. Understanding flow rates is critical when administering IV fluids. For example, if a glucose solution is replaced with whole blood, which has a viscosity 2.50 times that of the glucose, the flow rate would need to be adjusted relative to the new viscosity while maintaining other factors constant.