A patient in active labor is prescribed oxytocin 12 milliunits/min intravenously (IV). The IV bag contains 5 units of oxytocin in 500 mL of lactated Ringer’s solution.
How many mL/hour should the nurse set the infusion pump to? (Enter numerical value only) .
The Correct Answer is ["0.72"]
Step 1 is to calculate the total amount of oxytocin in the IV bag. This is done by multiplying the total volume of the bag by the concentration of oxytocin. In this case, the bag contains 5 units of oxytocin in 500 mL, so the concentration is 5 units ÷ 500 mL = 0.01 units/mL.
Step 2 is to convert the prescribed dose from milliunits/min to units/hour. There are 1000 milliunits in a unit and 60 minutes in an hour, so 12 milliunits/min = 12 ÷ 1000 units/min = 0.012 units/min. Then, 0.012 units/min × 60 min/hour = 0.72 units/hour.
Step 3 is to calculate the infusion rate in mL/hour. This is done by dividing the prescribed dose in units/hour by the concentration of oxytocin in units/mL. So, 0.72 units/hour ÷ 0.01 units/mL = 72 mL/hour. Therefore, the nurse should set the infusion pump to 72 mL/hour.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Preparing a vacuum is not the first action to take in this situation. A vacuum-assisted delivery might be considered in some cases, but it’s not the immediate action when the fetal head retracts against the perineum.
Choice B rationale
Applying suprapubic pressure is the correct action. This situation describes shoulder dystocia, where the baby’s shoulder gets stuck behind the mother’s pelvic bone during delivery. Suprapubic pressure can help dislodge the baby’s shoulder and allow the delivery to proceed.
Choice C rationale
Applying fundal pressure is not recommended in this situation. Fundal pressure could potentially worsen shoulder dystocia and is generally avoided.
Choice D rationale
Preparing forceps is not the immediate action to take. Forceps may be used in some delivery situations, but in the case of shoulder dystocia, other maneuvers are tried first.
Correct Answer is D
Explanation
Choice A rationale
While acknowledging the child’s knowledge about the upcoming operation is important, it does not provide the child with an opportunity to express their understanding or feelings about the operation.
Choice B rationale
Reassuring the child about the care they will receive is important, but it does not encourage the child to express their understanding or feelings about the operation.
Choice C rationale
Asking the child if they are scared might lead the child to focus on their fear, rather than helping them understand the operation.
Choice D rationale
Asking the child to explain what an operation is can help the healthcare provider assess the child’s understanding of the operation. It also provides an opportunity to correct any misconceptions and provide appropriate information.
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