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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["6"]
Explanation
To calculate the total number of tablets needed, we'll first calculate the total amount of azithromycin required for the treatment.
Step 1: Calculate the total azithromycin required:
Total Azithromycin = Day 1 Dose + (Day 2-5 Dose x Number of Days)
Total Azithromycin = 500 mg + (250 mg x 4 days)
Total Azithromycin = 500 mg + 1000 mg
Total Azithromycin = 1500 mg
Step 2: Determine the number of tablets needed:
Number of Tablets = Total Azithromycin (mg) / Tablet Strength (mg)
Number of Tablets = 1500 mg / 250 mg/tablet
Number of Tablets = 6
Therefore, the nurse should give the client a total of 6 tablets of azithromycin for the duration of treatment.
Correct Answer is ["2"]
Explanation
To calculate the number of tablets needed, we'll set up a proportion:
x tablets / 37.5 mg = 1 tablet / 25 mg
Cross-multiplying:
25x = 37.5
Solving for x:
x = 37.5 / 25
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 atenolol.
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