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?

Answer and Explanation

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.

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Correct Answer is C

Explanation

Choice A rationale
While the color, clarity, and odor of urine can provide important information about a patient’s overall health and hydration status, it is not the most crucial information to obtain before inserting an indwelling urinary catheter.
Choice B rationale
The patient’s ability to increase fluid intake can be important in managing various health conditions, but it is not the most important information to obtain before this procedure.
Choice C rationale
Knowing if a patient has allergies to antiseptic solutions is crucial before inserting an indwelling urinary catheter. Using an antiseptic solution that a patient is allergic to can lead to serious complications.
Choice D rationale
While a previous history of urinary tract infections can inform the care and management of a patient with an indwelling urinary catheter, it is not the most important information to obtain before the procedure.

A. The patient urinates only once or twice a day. B. The patient gained 10 lb (4.5 kg) within a month. C. The patient refuses to eat their favorite meals at home. D. The patient has been drinking more fluids than usual.

Correct Answer is D

Explanation

Choice A rationale
Urinating only once or twice a day is not a typical symptom of type I diabetes mellitus. In fact, frequent urination is a common symptom of diabetes.
Choice B rationale
Rapid weight gain is not typically associated with type I diabetes mellitus. On the contrary, unexplained weight loss is a common symptom.
Choice C rationale
Refusing to eat favorite meals is not a typical symptom of type I diabetes mellitus. Changes in appetite can occur in various conditions, but they are not specific to diabetes.
Choice D rationale
Drinking more fluids than usual, also known as polydipsia, is a common symptom of type I diabetes mellitus. This is often accompanied by polyuria (frequent urination) due to high blood sugar levels.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Before inserting an indwelling urinary catheter, which information about the patient is most important for the nurse to obtain?

Correct Answer is C

Explanation

A school-aged patient was recently diagnosed with type I diabetes mellitus. What symptom did the patient’s parents most likely report?

Correct Answer is D

Explanation

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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?