The order from the provider is: start a maintenance dose of magnesium sulfate of 4 g per hour. The pharmacy provides you with a 1 liter bag with 30 g of magnesium sulfate added. What is the rate on the infusion pump of the maintenance dose?
The Correct Answer is ["133"]
To calculate the infusion pump rate for a maintenance dose of magnesium sulfate, you need to determine how many milliliters per hour (mL/hr) will provide 4 grams (g) of magnesium sulfate per hour. Given that the pharmacy provides a 1-liter bag with 30 g of magnesium sulfate, this means there are 30,000 milligrams (mg) in 1,000 milliliters (mL) of solution. Since 1 g equals 1,000 mg, you need to administer 4,000 mg of magnesium sulfate per hour. To find the rate, divide the total amount of magnesium sulfate in the bag by the desired hourly dose: 30,000 mg divided by 4,000 mg per hour equals 7.5 hours of infusion time. Therefore, to administer the maintenance dose over one hour, you would set the infusion pump to 1,000 mL divided by 7.5 hours, which equals approximately 133.33 mL/hr = 133 mL/hr rounded off to the nearest whole number.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
To calculate the IV pump rate, you'll need to use the formula: (Volume in mL) / (Time in hours) = Rate in mL/hr. For clindamycin 300 mg premixed in 50 mL to be administered over 30 minutes, you would convert the minutes into hours (which is 0.5 hours), and then divide the total volume of the IV solution by this time. So, the calculation would be 50 mL / 0.5 hours = 100 mL/hr.
Correct Answer is ["2525"]
Explanation
To calculate the total intake of the client, the nurse would add up all the fluids administered over the past 9 hours. The lactated Ringer's IV, which was given at a rate of 150 mL/hr for 9 hours, totals 1350 mL. The cefazolin was administered in 100 mL of 0.9% sodium chloride, and since it's an intermittent bolus, we count it once, adding 100 mL. The two units of packed RBCs add up to 525 mL (275 mL + 250 mL). The two IV bolus infusions of 0.9% sodium chloride are 500 mL in total (250 mL each). Lastly, the famotidine was given in 50 mL of 0.9% sodium chloride. Adding all these together, the nurse should record a total intake of 2525 mL for the client over the past 9 hours.
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