A patient is to receive magnesium sulfate 2 grams per hour at 50 mL/hour rate of infusion.
How much magnesium sulfate must be added to 1000 mL normal saline to provide the ordered infusion?
10g
20 g
30 g
40 g
The Correct Answer is D
To calculate the amount of magnesium sulfate to be added to the normal saline, we can use the formula:
Concentration = Dose / Volume Plugging in the given values, we get:
Concentration = 2 g / 50 mL Simplifying, we get:
Concentration = 0.04 g/mL
To find the amount of magnesium sulfate needed for 1000 mL of normal saline, we can multiply the concentration by the volume:
Amount = Concentration × Volume Amount = 0.04 g/mL × 1000 mL Amount = 40 g
Therefore, 40 g of magnesium sulfate must be added to 1000 mL of normal saline to provide the ordered infusion.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Step 1: Determine the dosage ratio. 60 mg (ordered) ÷ 70 mg (available) = 0.8571 (rounded to 4 decimal places)
Step 2: Calculate the volume to administer. 0.8571 × 75 mL (available) = 64.2857 mL (rounded to 4 decimal places)
Step 3: Round to the nearest whole number. 64.2857 mL rounds to 64 mL
So, the nurse should administer 64 mL to the patient.
The correct answer is B. 64 mL.
The correct answer is B. 64 mL.
Correct Answer is C
Explanation
The Tylenol 3 medication contains codeine 30 mg and acetaminophen (APAP) 300 mg per tablet.
The physician has ordered Tylenol 3 30 mg every 4-6 hours as needed for pain. Therefore, the nurse should administer 1 tablet (containing 30 mg of codeine and 300 mg of APAP) every 4-6 hours as needed for pain..
It is important to note that the maximum daily dose of acetaminophen is 4,000 mg. Therefore, the nurse should monitor the total daily dose of acetaminophen the patient receives from all sources to ensure it does not exceed 4,000 mg.
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