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 C,A,B,D
Explanation
Step 1: Complete a focused assessment. The first step in managing a patient with abdominal pain and distention, vomiting, and constipation is to perform a focused assessment. This includes assessing the patient’s vital signs, pain level, abdominal distention, bowel sounds, and any other relevant physical findings.
Step 2: Elevate the head of the bed. Elevating the head of the bed can help reduce the risk of aspiration, especially in a patient who has recently vomited.
Step 3: Send the emesis sample to the lab. Analyzing the vomitus can provide important information about the possible causes of the patient’s symptoms. For example, the presence of blood could suggest a gastrointestinal bleed.
Step 4: Offer PRN pain medication. After the initial assessment and interventions, the nurse should address the patient’s comfort. Pain management is an important part of patient care, but in this scenario, it is not the highest priority.
Correct Answer is A
Explanation
Choice A rationale
Initiating a hearing and vision screening program for first graders is an example of secondary prevention. Secondary prevention aims to identify and treat an illness or disease at an early stage, which is exactly what a screening program does.
Choice B rationale
Observing a person with type I diabetes mellitus self-administer a dose of insulin is not an example of secondary prevention. This is more related to disease management, which falls under tertiary prevention.
Choice C rationale
Preparing a presentation on how to prevent the spread of lice is an example of primary prevention, which aims to prevent disease or injury before it ever occurs.
Choice D rationale
Collaborating with a science teacher to prepare a health lesson could be seen as primary prevention if the lesson is about preventing disease, or tertiary prevention if it’s about managing existing conditions.
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