A client who has pre-eclampsia receives a prescription for an IV infusion of 0.9% normal saline with magnesium sulfate 4 gram/250 ml to be infused at a rate of 125 ml/hour. The nurse should administer how many mg/hour of magnesium sulfate? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["2000"]
To calculate the infusion rate of magnesium sulfate, we'll follow these steps:
1. Calculate the concentration of magnesium sulfate in the IV solution:
Magnesium Sulfate Concentration = Magnesium Sulfate (g) / Solution Volume (mL)
Magnesium Sulfate Concentration = 4 grams / 250 mL
Magnesium Sulfate Concentration = 16 mg/mL
2. Calculate the magnesium sulfate infusion rate in mg/hour:
Magnesium Sulfate Infusion Rate = Infusion Rate (mL/hour) x Magnesium Sulfate Concentration (mg/mL)
Magnesium Sulfate Infusion Rate = 125 mL/hour x 16 mg/mL
Magnesium Sulfate Infusion Rate = 2000 mg/hour
Therefore, the nurse should administer 2000 mg/hour of magnesium sulfate.
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Related Questions
Correct Answer is ["2"]
Explanation
First, let's convert grams to milligrams:
0.1 grams x 1000 mg/gram = 100 mg
Then, set up a proportion:
x tablets / 150 mg = 1 tablet / 100 mg
Cross-multiply:
100x = 150
Solve for x:
x = 150 / 100
x = 1.5
Since we cannot administer a fraction of a tablet, we round up to the nearest whole number.
Therefore, the nurse should administer 2 tablets of secobarbital.
Correct Answer is ["2"]
Explanation
To calculate the volume of metoclopramide to be administered, we can use the following formula:
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
Plugging in the given values:
Volume (mL) = 10 mg / 5 mg/mL
Volume (mL) = 2 mL
Now, we need to convert milliliters to teaspoons.
1 teaspoon ≈ 4.93 mL
To find the number of teaspoons needed:
Number of teaspoons = Volume (mL) / Volume per teaspoon (mL/teaspoon)
Number of teaspoons = 2 mL / 4.93 mL/teaspoon
Number of teaspoons ≈ 0.406 teaspoons
Since we cannot administer a fraction of a teaspoon, we round up to the nearest whole number.
Therefore, the nurse should administer 2 teaspoons of metoclopramide
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