ATI RN
ATI Pharmacology Exam 2 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer antibiotic X over 20 min. Available is antibiotic X in 50 mL of 0.9% sodium chloride (NS). The drop factor of the IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: B
Rationale:
To calculate the IV drip rate, we first need to determine the total volume of antibiotic X in mL that will be infused over 20 minutes. The formula is: mL per hour = (
Total volume / Time in minutes) × 60. In this case, (50 mL / 20 min) × 60 = 150 mL/hr.
Next, we convert the mL/hr to gtt/min using the drop factor. The formula is: gtt/min = (mL/hr × drop factor) / 60.
Therefore, (150 mL/hr × 20 gtt/mL) / 60 = 50 gtt/min.
This means the nurse should set the manual IV infusion to deliver 50 gtt/min to administer antibiotic X over 20 min.
Choice B (50) is the correct answer.
Choices A (40), C (60), and D (70) are incorrect as they do not accurately reflect the calculated drip rate.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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