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 D
Explanation
Choice A rationale
Offering the client oral fluids is important for hydration, but it is not directly related to the care of an indwelling urinary catheter. The UAP can offer fluids to the client, but this action is not specifically tied to the turning of the client or the care of the urinary catheter.
Choice B rationale
Feeding the client a snack is a task that the UAP may perform, but it is not directly related to the care of an indwelling urinary catheter. The UAP can provide a snack to the client, but this action is not specifically tied to the turning of the client or the care of the urinary catheter.
Choice C rationale
Assessing breath sounds is within the scope of practice for a nurse, not a UAP. While it’s important to monitor a client’s respiratory status, this action is not directly related to the care of an indwelling urinary catheter.
Choice D rationale
Emptying the urinary drainage bag is an appropriate action for the UAP to take each time the client is turned. This action helps to prevent infection, maintain accurate intake and output records, and ensure the comfort and dignity of the client.
Correct Answer is A
Explanation
Choice A rationale
Testing the fluid on the dressing for glucose is the immediate action the nurse should take. Clear fluid could be cerebrospinal fluid (CSF), which is often released following spinal surgery. CSF contains glucose, so a positive glucose test would confirm it is CSF.
Choice B rationale
Replacing the dressing using a compression bandage is not the immediate action the nurse should take. While it is important to manage the drainage and prevent infection, the nurse first needs to identify what the clear fluid is.
Choice C rationale
Marking the drainage area with a pen and continuing to monitor is not the immediate action the nurse should take. While this can be part of ongoing wound care and monitoring, the nurse first needs to identify what the clear fluid is.
Choice D rationale
Documenting the findings in the electronic medical record is an important step, but it should not be the immediate action. The nurse first needs to identify what the clear fluid is, as it could indicate a complication from the surgery.
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