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
While regular monitoring of blood sugar levels is important in managing diabetes, checking every four to six hours every day may not be necessary for all patients. The frequency of blood glucose monitoring should be individualized based on the type and severity of the diabetes, the patient’s blood glucose control, and the patient’s specific needs.
Choice B rationale
Keeping diabetic medication on schedule as prescribed is crucial in managing blood glucose levels and preventing complications related to diabetes. This indicates that the patient has understood the importance of medication adherence in diabetes management.
Choice C rationale
While it’s recommended to limit alcohol consumption, restricting alcoholic beverages to no more than 1-2 per week is not a standard guideline for all patients with diabetes. The effects of alcohol on blood glucose levels can vary depending on several factors, including the amount of alcohol consumed, the presence of food, and the individual’s overall diabetes management.
Choice D rationale
Limiting daily fat intake to 15% of total calories is not a standard recommendation for patients with diabetes. The American Diabetes Association recommends individualized medical nutrition therapy to manage diabetes, which may include monitoring carbohydrate intake and considering the quality of fats and proteins in the diet.
Correct Answer is A
Explanation
Choice A rationale
In a client with gastroenteritis experiencing fever, chills, anorexia, and diarrhea, fluid volume deficit is a major concern. Diarrhea and fever can both lead to significant fluid loss. If not addressed, fluid volume deficit can lead to serious complications such as hypovolemic shock.
Choice B rationale
While impaired bed mobility may be a concern due to the client’s history of stroke, it is not the highest priority in this situation. The immediate physiological needs related to the client’s gastroenteritis and potential fluid volume deficit should be addressed first.
Choice C rationale
Caregiver role strain may be a concern given that the client is dependent on care provided by the spouse. However, this psychosocial issue is not the highest priority when the client is experiencing acute physical symptoms that need immediate attention.
Choice D rationale
Bowel incontinence could be a concern for a client with gastroenteritis. However, the risk of fluid volume deficit due to diarrhea and fever is a more immediate concern.
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