A nurse is preparing to administer lactated Ringer's 150 mL IV to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["300"]
To calculate the infusion rate in mL/hr, you can use the formula: (Total Volume in mL) / (Time in hours) = Rate in mL/hr. For lactated Ringer's 150 mL to be infused over 30 minutes, you would first convert the time to hours, which is 0.5 hours (since 30 minutes is half an hour). Then, divide the total volume by the time: 150 mL / 0.5 hours = 300 mL/hr.
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Related Questions
Correct Answer is ["400"]
Explanation
To calculate the infusion rate in mL/hr, you can use the formula: (Total Volume in mL / Time in hours) x 60. For an infusion of 100 mL over 15 minutes, you would first convert the time to hours, which is 15 minutes divided by 60, equaling 0.25 hours. Then, you divide the total volume by the time in hours: 100 mL / 0.25 hours equals 400. Finally, multiply by 60 to convert to an hourly rate: 400 x 60 equals 24,000 mL/hr. However, this number needs to be rounded to the nearest whole number, without a trailing zero. Therefore, the IV pump should be set to deliver 400 mL/hr.
Correct Answer is ["13"]
Explanation
To calculate the dosage of acetaminophen liquid required, one must use the formula: (desired dose / available dose) x volume of available dose. For the adolescent who needs 400 mg of acetaminophen, and with the available acetaminophen liquid concentration of 160 mg per 5 mL, the calculation would be: (400 mg / 160 mg) x 5 mL. This simplifies to 2.5 x 5 mL, which equals 12.5 mL.
Answer: 13 mL (rounded off to the nearest whole number)
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