Order: 1000 mL D5W 0.45% NS over 8 hours
Drop factor: 15gtts / mL
Calculate the flow rate. Show all work
To calculate the flow rate, we need to determine the total number of drops needed to infuse 1000 mL of D5W 0.45% NS over 8 hours and then divide it by the total number of hours.
First, we need to convert 8 hours to minutes:
8 hours × 60 minutes/hour = 480 minutes
Next, we need to determine the total number of drops used to infuse 1000 mL. We can use the drop factor:
Total number of drops = 1000 mL × 15 gtts/mL
Total number of drops = 15000 gtts
Finally, we divide the total number of drops (15000 gtts) by the total number of minutes (480 minutes) to calculate the flow rate:
Flow rate = 15000 gtts ÷ 480 min
Flow rate = 31.25 gtts/min
So, the flow rate is 31.25 gtts/min.
To calculate the flow rate, we need to determine the total number of drops per minute and convert it to mL per hour.
1. First, calculate the total volume to be infused over 8 hours:
1000 mL
2. Next, divide the total volume by the total time to obtain the flow rate per hour:
1000 mL / 8 hours = 125 mL/hour
3. Convert the flow rate from mL per hour to mL per minute by dividing by 60:
125 mL/hour / 60 minutes = 2.08 mL/minute
4. Multiply the flow rate in mL per minute by the drop factor (15 gtts/mL) to find the total number of drops per minute:
2.08 mL/minute * 15 gtts/mL = 31.2 gtts/minute
Therefore, the flow rate necessary for this order is approximately 31.2 gtts/minute.