A healthcare provider prescribes a maintenance dose of 2 grams per hour of intravenous magnesium sulfate for a client with preeclampsia.

The IV bag contains 20 grams of magnesium sulfate in 500 mL of 5% dextrose in water.

How many mL/hour should the nurse set the infusion pump to deliver? (Note: This is a medical math, so no options are provided.)

Answer and Explanation

The Correct Answer is ["50"]

To calculate the rate at which the infusion pump should be set, we need to determine how many mL of the solution contain 2 grams of magnesium sulfate.

Step 1: First, we find out how many grams of magnesium sulfate are in 1 mL of the solution. The IV bag contains 20 grams of magnesium sulfate in 500 mL, so we divide 20 grams by 500 mL to get the amount of magnesium sulfate per mL: 20 grams ÷ 500 mL = 0.04 grams/mL

Step 2: Next, we find out how many mL contain 2 grams of magnesium sulfate.

We divide 2 grams by the amount of magnesium sulfate per mL: 2 grams ÷ 0.04 grams/mL = 50 mL Therefore, the nurse should set the infusion pump to deliver 50 mL per hour.

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Correct Answer is C

Explanation

Choice A rationale

While remaining on clear liquids until the vomiting subsides may seem like a reasonable approach, it may not be the best course of action for a pregnant woman who has been vomiting for 24 hours. This is because prolonged vomiting can lead to dehydration and electrolyte imbalances, which can be harmful to both the mother and the fetus.

Choice B rationale

Taking nothing by mouth until there is no more nausea is not advisable in this situation. Nausea can persist even after vomiting has stopped, and it’s important for the woman to stay hydrated and nourished.

Choice C rationale

The best course of action in this situation is for the woman to come to the clinic to be seen by a healthcare provider. This is because prolonged vomiting can lead to dehydration and electrolyte imbalances, which can be harmful to both the mother and the fetus. In addition, the healthcare provider can assess the woman’s condition and provide appropriate treatment.

Choice D rationale

Making an appointment at the clinic if a fever occurs is not the best advice in this situation. While it’s important to seek medical attention if a fever develops, the woman should not wait for this to happen before seeking help. Prolonged vomiting can lead to dehydration and electrolyte imbalances, which can be harmful to both the mother and the fetus, and should be addressed promptly.

A. Swaddle the infant in a warm blanket. B. Document the findings in the record. C. Place a pulse oximeter on the infant’s heel. D. Obtain a heel stick blood glucose level.

Correct Answer is D

Explanation

Choice A rationale

While swaddling the infant in a warm blanket can help maintain body temperature, it does not address the underlying issue causing the symptoms.

Choice B rationale

Documenting the findings in the record is important, but it is not the immediate action that should be taken. The newborn’s symptoms suggest a possible health issue that needs immediate attention.

Choice C rationale

Placing a pulse oximeter on the infant’s heel can provide information about the newborn’s oxygen saturation, but it does not address the immediate concern of the symptoms presented.

Choice D rationale

Obtaining a heel stick blood glucose level is the correct action. The symptoms presented by the newborn such as jitteriness, hypotonicity, and a weak cry can be signs of hypoglycemia, a condition that can occur in newborns.

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Naxlex Comprehensive Predictor Exams

A client who is at 10-weeks gestation calls the clinic because she has been vomiting for the past 24 hours. The nurse determines that the client has no fever.What instruction should the nurse give to this client?

Correct Answer is C

Explanation

Correct Answer is D

Explanation

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