The healthcare provider prescribes magnesium sulfate 6 grams intravenously (IV) to be infused over 20 minutes for client with preterm labor. The IV bag contains magnesium sulfate 20 grams in dextrose 5% in water 500 mL. How many mL/hour should the nurse set the infusion pump?
(Enter numerical value only.)
The Correct Answer is ["450"]
- To calculate the infusion rate, use the formula:
(mL of solution / grams of drug) x (grams ordered / minutes to infuse) x 60
- In this case, the formula becomes: (500 mL / 20 g) x (6 g / 20 min) x 60
- Simplify and solve: (25 mL / g) x (0.3 g / min) x 60
- The answer is 450 mL/hour
- The nurse should set the infusion pump at 450 mL/hour
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Use a fingertip to palpate the inguinal canal for a weakening or indentation:
This is a reasonable next step in assessing for undescended testes. Palpating the inguinal canal can help determine if the testes are located in the inguinal area.
B.Measure the size of the scrotal sac for length and width:
While scrotal size can be relevant in some contexts, it may not provide direct information about the presence or absence of the testes. Palpation or other methods are more specific for this purpose.
C. Perform transillumination of the scrotal sac to visualize shadows of the testes:
Transillumination involves shining light through tissues to detect structures. However, in the case of evaluating the presence of testes, palpation is usually a more direct and accurate method.
D. Observe the urethral opening on the surface of the penis when the newborn voids:
This option is unrelated to assessing the presence of testes. Observing the urethral opening is more relevant for assessing the anatomy of the penis.
Correct Answer is D
Explanation
A. Administer oxygen via facemask: Oxygen administration is generally a step in managing fetal distress. However, when dealing with variable decelerations, the initial action involves repositioning the mother to alleviate potential cord compression, as variable decelerations are often due to compression of the umbilical cord.
B. Turn off the oxytocin infusion: If variable decelerations persist despite repositioning, it might be necessary to discontinue the oxytocin (Pitocin) infusion temporarily. Oxytocin can cause or exacerbate uterine hyperstimulation, which can contribute to fetal distress.
C. Assess cervical dilatation: Assessing cervical dilatation might be a part of the overall assessment but might not directly address the immediate issue of variable decelerations. However, it's essential to monitor the progress of labor as part of the broader assessment.
D. Change the client's position: This is the recommended first action for variable decelerations. Repositioning the mother, such as moving her to a lateral or knee-chest position, can relieve potential cord compression and improve fetal oxygenation.
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