Question

Health

You have been ordered to administer an IV infusion of 1000 mL over a period of 8 hours. However, after 3 hours, you realize that only 600 mL have been infused. The IV set delivers 20 drops per milliliter. You need to recalculate the drip rate and determine how many drops you should count in 15 seconds to set the new rate. What is the new drip rate and how many drops should you count in 15 seconds?

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Best Answer

To calculate the new drip rate, subtract the amount of fluid already infused (600 mL) from the initial volume (1000 mL) to find the remaining volume (400 mL). Divide the remaining volume by the remaining time (3 hours) to find the rate of flow in mL/hr. Round the obtained value to the nearest integer, which is approximately 133 mL/hr.

Next, divide 60 by the set rate (20 gtt/mL) to find the division factor. The division factor is 3. Divide the obtained rate (133 mL/hr) by the division factor (3) to find the new flow rate in gtt/min. Round the obtained value to the nearest integer, which is approximately 44 gtt/min.

Finally, divide the new rate (44 gtt/min) by 4 to find the number of drops you should count in 15 seconds. The result is 11 gtt/15 sec.