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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Related Questions
Correct Answer is ["3.5"]
Explanation
To convert the weight of the newborn from grams to kilograms, one needs to divide the number of grams by 1,000 since there are 1,000 grams in a kilogram. Therefore, a newborn who weighs 3,500 grams would be recorded as weighing 3.5 kilograms.
Correct Answer is ["2"]
Explanation
To administer a dose of 10 mg of oxycodone when only 5 mg tablets are available, the nurse would need to give two (2) tablets to achieve the required dose. This is because each tablet contains 5 mg, and two tablets would make up the 10 mg dose that has been prescribed.
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