A nurse is preparing to administer cefoxitin 400 mg by intermittent IV bolus over 1 hr to a school-age child. Available is cefoxitin 400 mg in 50 mL dextrose 5% in water. The nurse should ensure the IV pump is set 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 ["50"]
To calculate the IV pump setting, you would use the formula: Volume (mL) over Time (hr) = Rate (mL/hr). In this case, the total volume of the cefoxitin solution is 50 mL, and it needs to be administered over 1 hour. Therefore, the nurse should set the IV pump to deliver 50 mL/hr. When rounding to the nearest whole number, the rate remains 50 mL/hr.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.042"]
Explanation
To convert milligrams (mg) to grams (g), one must remember that 1 gram is equivalent to 1000 milligrams. Therefore, to find the equivalent in grams for 42 mg, the amount in milligrams should be divided by 1000. Doing the math, 42 mg divided by 1000 gives 0.042 grams. When rounding this to the nearest thousandth, it remains 0.042, as the fourth decimal place is not significant enough to round up the third decimal place. Hence, 42 mg is equivalent to 0.042 g.
Correct Answer is ["1.2"]
Explanation
To calculate the dosage of prochlorperazine for the adolescent, first convert the weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The adolescent weighs 103 lb, which is approximately 46.82 kg (103 ÷ 2.2). Next, multiply the weight in kilograms by the dosage prescribed, which is 0.13 mg/kg. This results in a total dosage of 6.09 mg (46.82 kg × 0.13 mg/kg). Finally, divide the total dosage by the concentration of the available medication to find out how many mL to administer. The available prochlorperazine injection has a concentration of 5 mg/mL, so you would administer 1.22 mL (6.09 mg ÷ 5 mg/mL). Rounded to the nearest tenth, the nurse should administer 1.2 mL per dose.
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