A patient with neuroleptic malignant syndrome has been prescribed dantrolene 1.5 mg/kg IV. The patient weighs 132 pounds.
The label on the 250 mg vial reads, “Reconstitute with 5 mL sterile water for injection, USP. Reconstitution yields 50 mg/mL.”. How many mL should the nurse administer?
The Correct Answer is ["1.80"]
Step 1 is to convert the patient’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. We know that 1 kg is approximately 2.20462 pounds. So, the patient’s weight in kilograms is 132 pounds ÷ 2.20462 = 59.87 kg.
Step 2 is to calculate the total dosage of dantrolene needed. The prescribed dosage is 1.5 mg/kg. So, the total dosage is 1.5 mg/kg × 59.87 kg = 89.81 mg.
Step 3 is to calculate the volume of reconstituted dantrolene solution needed to provide the total dosage. The reconstituted solution has a concentration of 50 mg/mL. So, the volume needed is 89.81 mg ÷ 50 mg/mL = 1.80 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Suggesting that the child participate in a team sport to encourage socialization is not the best response. Duchenne muscular dystrophy (DMD) is a progressive disease that causes muscle weakness and loss of muscle mass. Participating in a team sport could be physically challenging for the child and could potentially lead to injury.
Choice B rationale
Encouraging the parents to allow the child to continue attending swimming lessons with supervision is the best response. Swimming is a low-impact exercise that can help maintain muscle strength and flexibility in children with DMD. It also provides an opportunity for socialization.
Choice C rationale
Explaining that the child is too young to understand the risks associated with swimming is not the best response. Children with DMD can participate in swimming with appropriate supervision and safety measures in place.
Choice D rationale
Providing a list of alternative activities that are less likely to cause the child to experience fatigue is not the best response. While it’s important to consider activities that are appropriate for the child’s physical abilities, it’s also important to consider the child’s interests. The child has expressed a desire to continue swimming, and with appropriate supervision, this activity can be beneficial.
Correct Answer is C
Explanation
Choice A rationale
While taking the blood pressure in the other arm might avoid the spasms, it does not address the underlying cause of the spasms. Therefore, this is not the best action for the nurse to take.
Choice B rationale
Using a different sphygmomanometer would not necessarily prevent the spasms from occurring. The spasms are likely not caused by the equipment itself, but rather a physiological issue within the client.
Choice C rationale
The spasms in the client’s hand and fingers could be a sign of hypocalcemia, a condition where there is not enough calcium in the blood. One of the symptoms of hypocalcemia is muscle spasms or tetany. Therefore, reviewing the client’s serum calcium level would be an appropriate action to take.
Choice D rationale
Administering a PRN antianxiety medication would not address the underlying cause of the spasms. While anxiety can cause muscle tension and spasms, there is no indication in the scenario that anxiety is the cause of this client’s symptoms.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.