How is the drip rate for an IV infusion calculated?

The drip rate for an IV infusion is calculated by dividing the volume to be infused in mL by the time in hours and then multiplying this by the drop factor. This calculation provides a clear and practical method to determine how quickly the IV fluid should be administered.

The volume of the IV fluid to be infused represents the total amount that needs to be delivered to the patient. The time is taken in hours because IV infusions are commonly monitored over this longer period, allowing for adjustments based on the patient's needs and the prescribed therapy. The drop factor is essential because it converts the mL/hr rate into drops per minute, which is how the flow is regulated during administration with IV tubing.

Using this formula ensures a precise and controlled IV fluid delivery, which is crucial in maintaining the correct hydration and medication levels within the patient’s bloodstream. The other options either misrepresent the relationship between the volume, time, and drop factor or use inappropriate units of time which would not yield an accurate drip rate.