Pharmacology Proctored ATI Practice Exam 2025 - Free Pharmacology Practice Questions and Study Guide

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What manual IV infusion rate should be set for Ringer's lactate at 120 mL/hr with a drop factor of 60 gtt/mL?

2 gtt/min

120 gtt/min

A 2 gtt/min is incorrect because it does not take into account the drop factor of 60 gtt/mL. This option would only be correct if the drop factor was 1 gtt/mL.

C: 60 gtt/min is incorrect because it does not account for the 120 mL/hr infusion rate. This would only be correct if the infusion rate was 60 mL/hr.

D: 12 gtt/min is incorrect because it would only be correct if the drop factor was 5 gtt/mL. This option does not account for the actual drop factor of 60 gtt/mL.

The correct answer is B: 120 gtt/min because it takes into account both the infusion rate of 120 mL/hr and the drop factor of 60 gtt/mL. This means that for every hour, 120 drops will be delivered, with each drop being equivalent to 60 gtt/mL. Therefore, setting the manual IV infusion rate to 120 gtt/min will ensure the correct delivery of Ringer's lactate at 120 mL/hr.

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60 gtt/min

12 gtt/min

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