A nurse is preparing to administer lidocaine 7 mg/min via continuous IV infusion to a client who is pregnant and has a ventricular arrhythmia. Available is lidocaine 1 g in dextrose 5% in water 250 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 ["105"]
To calculate the IV pump setting, we need to convert the dosage from mg/min to mg/hr, and then find out how many mL/hr this corresponds to, given the concentration of the solution. First, multiply the ordered dose by 60 minutes to convert to an hourly rate: 7 mg/min * 60 min/hr = 420 mg/hr. Next, since we have 1 g of lidocaine in 250 mL, we convert 1 g to mg, which is 1000 mg. Now, we have 1000 mg in 250 mL, so we need to find out how many mL are needed for 420 mg. Using a proportion, we have 1000 mg/250 mL = 420 mg/x mL. Solving for x gives us x = (420 mg * 250 mL) / 1000 mg, which equals 105 mL. Therefore, the nurse should set the IV pump to deliver 105 mL/hr.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Offering the medication preemptively is not indicated because the prescription specifies administration only if saturation occurs within 15 minutes.
B. Administering the medication once if the client saturates the perineal pad within 15 minutes aligns with the prescription's directive to use oxytocin to manage excessive bleeding promptly.
C. Waiting 15 minutes after saturation does not align with the urgency indicated by the prescription, which specifies immediate administration upon saturation.
D. Administering the medication each time the pad saturates within 15 minutes could lead to excessive dosing and is not in accordance with the prescription's one-time use instruction.
Correct Answer is A
Explanation
A. Frequency of administration: The prescription does not specify how often the nystatin cream should be applied. This is a critical piece of information necessary for the safe and effective use of the medication, and the nurse should clarify it with the provider.
B. Concentration of the medication: The concentration of 100,000 units/g is a standard dosage for nystatin cream and does not require clarification.
C. Name of the medication: Nystatin cream is clearly identified in the prescription, so there is no ambiguity regarding the medication.
D. Route of administration: The prescription specifies that the cream should be applied to the affected area, indicating the topical route, which is clear and appropriate for nystatin cream.
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