A nurse is preparing to administer 12 L of lactated Ringer’s IV to infuse over 24 hr. Half of the fluid is to be administered in the first 8 hr. The nurse should set the IV pump to deliver how many mL/hr during the first 8 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 ["750"]
To calculate the infusion rate for the first 8 hours, we can use the following formula:
Infusion rate (mL/hr) = (Volume to be infused / Time for infusion)
First, we need to find the volume to be infused in the first 8 hours:
Volume for the first 8 hours = Total volume / 2 = 12 L / 2 = 6 L = 6000 mL
Now we can calculate the infusion rate for the first 8 hours:
Infusion rate = 6000 mL / 8 hr = 750 mL/hr
Therefore, the nurse should set the IV pump to deliver 750 mL/hr during the first 8 hours.
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Related Questions
Correct Answer is ["31"]
Explanation
To calculate the IV flow rate in drops per minute (gtt/min), we can use the following steps:
Calculate the total number of minutes for the infusion:
8 hours × 60 minutes/hour = 480 minutes
Determine the total number of drops needed for the infusion:
The total volume to be infused is 1000 mL.
The drop factor is 15 gtt/mL.
1000 mL × 15 gtt/mL = 15000 gtt
Calculate the IV flow rate in drops per minute:
15000 gtt ÷ 480 min ≈ 31 gtt/min
Rounding to the nearest whole number, the nurse should set the IV flow rate to deliver 31 gtt/min.
Correct Answer is B
Explanation
Choice A reason: This is incorrect because 30 minutes is too long to wait for reassessing a client with chest pain. Nitroglycerin has a rapid onset of action and should relieve chest pain within 5 minutes. If not, the client may need another dose or emergency care.
Choice B reason: This is correct because 5 minutes is the appropriate time to reassess a client after administering nitroglycerin sublingual. The nurse should check the client's blood pressure, heart rate, and pain level. If the pain persists, the nurse should follow the protocol for giving another dose or calling for help.
Choice C reason: This is incorrect because 1 hour is too long to wait for reassessing a client with chest pain. Nitroglycerin has a short duration of action and may need to be repeated every 5 minutes for up to 3 doses. Waiting for an hour may put the client at risk of worsening cardiac ischemia or infarction.
Choice D reason: This is incorrect because 15 minutes is too long to wait for reassessing a client with chest pain. Nitroglycerin should have an effect within 5 minutes. If the pain is not relieved by then, the client may need another dose or emergency care.
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