Question

A client who has preeclampsia 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.)

Answer 1

The nurse should administer 2000 milligrams per hour of magnesium sulfate to the client with preeclampsia based on the given prescription details.

Step-by-step explanation:

To calculate the amount of magnesium sulfate administered per hour, we can use the following proportion based on the prescription details:

4 grams of magnesium sulfate in 250 mL of solution will be administered at a rate of 125 mL per hour.

• First, we need to find out how many grams of magnesium sulfate are in 125 mL.
• Then, we convert the amount from grams to milligrams, as the question requests the answer in milligrams.

To find the grams per 125 mL:

(4 grams / 250 mL) = x grams / 125 mL.

By cross-multiplying, we get:

250x = 4 * 125,

x = (4 * 125) / 250,

x = 2 grams.

Now, converting grams to milligrams:

2 grams = 2000 milligrams.

Therefore, the nurse should administer 2000 mg/hour of magnesium sulfate.