A nurse is reviewing a client's laboratory results before administering furosemide 40 mg IV bolus. For which of the following values should the nurse withhold the medication and contact the provider?

Sodium 141 mEq/L

Potassium 2.5 mEq/L

WBC count 8,000/mm3

INR 1.0

Answer and Explanation

The Correct Answer is B

Choice A Reason:
Sodium 141 mEq/L is incorrect. This value is within the normal range (usually around 135-145 mEq/L).
Choice B Reason:
Potassium 2.5 mEq/ is correct. Furosemide, a loop diuretic, can lead to potassium loss through increased urine output. If a client already has a low potassium level (hypokalemia), administering furosemide can further decrease potassium levels, potentially causing or worsening hypokalemia. Hypokalemia can lead to various complications, including cardiac arrhythmias.
Choice C Reason:
WBC count 8,000/mm3 is incorrect. This value falls within the normal range for white blood cell count.
Choice D Reason:
INR 1.0: An INR of 1.0 is within the normal range for a person not on anticoagulation therapy.

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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.

Correct Answer is ["60"]

Explanation

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.

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A nurse is reviewing a client's laboratory results before administering furosemide 40 mg IV bolus. For which of the following values should the nurse withhold the medication and contact the provider?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to titrate a continuous nitroprusside infusion for a client. The nurse should plan to titrate the infusion according to which of the following assessments?

Correct Answer is A

Explanation

Correct Answer is ["60"]

Explanation

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