A nurse is preparing to administer lidocaine via continuous IV infusion at 4 mg/min. Available is lidocaine 2 g dextrose 5% in water 500 mL. 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 ["60"]
Step 1: Determine the Lidocaine Concentration
- The solution contains 2 grams (2000 mg) of lidocaine in 500 mL.
- To find the amount of lidocaine per mL:
2000 mg ÷ 500 mL = 4 mg/mL
Step 2: Calculate the Total Dose per Hour
- The prescribed infusion rate is 4 mg per minute.
- In 1 hour (60 minutes), the total dose is:
4 mg/min × 60 min = 240 mg/hr
Step 3: Determine the Infusion Rate in mL/hr
- Since each mL contains 4 mg of lidocaine:
240 mg ÷ 4 mg/mL = 60 mL/hr
The nurse should set the IV pump to 60 mL/hr for the continuous IV infusion of lidocaine at a rate of 4 mg/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Remove duplicate medications of different dosages from the reconciliation is incorrect. Removing duplicate medications with different dosages from the reconciliation is indeed essential. However, the primary focus during transfer is to compare the current medication list with the new regimen to avoid omissions or discrepancies in the transition process.
Choice B Reason:
Compare the current list of medications to medications the client will receive after transform is correct. Comparing the current list of medications, the client is taking to the medications they are expected to receive after transfer is crucial for ensuring a seamless transition of care. This process helps identify discrepancies, potential interactions, or changes in the medication regimen between settings, ensuring the continuity and accuracy of medication administration.
Choice C Reason:
Omit over-the-counter medications from the at-home medication list is incorrect. Over-the-counter medications should ideally be included in the medication reconciliation process to provide a comprehensive overview of all medications the client is taking, including potential interactions with prescribed medications.
Choice D Reason:
Include medications the client received in the acute setting but will no longer need after transfer is incorrect. The reconciliation process should aim to update the medication list to reflect the client's current and future medication needs accurately. Including medications, the client received in the acute setting but won't need after transfer might introduce unnecessary medications into the new regimen. These should be communicated but not included in the ongoing medication list.
Correct Answer is A
Explanation
Choice A Reason:
Blood pressure is correct. Nitroprusside is a medication used to lower blood pressure in conditions such as hypertensive emergencies. It's titrated based on blood pressure readings, with the goal of achieving the desired target blood pressure range as directed by the healthcare provider. The nurse would monitor the client's blood pressure closely and adjust the infusion rate accordingly to achieve the prescribed blood pressure parameters.
Choice B Reason:
Stroke volume is incorrect. While stroke volume (the amount of blood ejected by the heart with each contraction) is important in assessing heart function, it's not directly used to titrate a nitroprusside infusion. Nitroprusside primarily acts as a vasodilator to reduce blood pressure, rather than affecting stroke volume.
Choice C Reason:
Cardiac output is incorrect. Cardiac output (the volume of blood pumped by the heart per minute) is also a crucial measure of heart function, but adjusting a nitroprusside infusion based on cardiac output is not a common practice. Nitroprusside's primary action is to dilate blood vessels, impacting blood pressure regulation more directly than cardiac output.
Choice D Reason:
Urine output is incorrect. While urine output is an important indicator of renal function and overall fluid balance, it is not typically used as the main parameter for titrating nitroprusside. Nitroprusside's primary effect is on vasodilation and blood pressure control rather than directly impacting urine output.
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