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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Related Questions
Correct Answer is ["25"]
Explanation
To calculate the infusion rate for the IV pump, you would use the formula: (Total Volume in mL / Time in hours = mL/hr). For the client prescribed 1 g of potassium phosphate to be infused over 10 hours, with the available solution being 1 g in 250 mL of D5W, the calculation would be 250 mL / 10 hr = 25 mL/hr.
Correct Answer is ["12"]
Explanation
To calculate the rate for the infusion pump, you need to determine how many milliliters per hour (mL/hr) will deliver 1200 units of heparin. First, find the concentration of the heparin solution by dividing the total units of heparin by the total volume of the solution. In this case, 25,000 units divided by 250 mL equals 100 units/mL. Next, divide the ordered amount of heparin units per hour by the concentration to find the rate in mL/hr. So, 1200 units per hour divided by 100 units/mL equals 12 mL/hr.
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