A client with neuroleptic malignant syndrome receives a prescription for dantrolene 1.5 mg/kg IV. The client 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 ["1.8"]
The client weighs 132 pounds. To convert pounds to kilograms, divide the weight in pounds by
2.2. So, the client’s weight in kilograms is: Step 1: 132 pounds ÷ 2.2 = 60 kg The prescription for dantrolene is 1.5 mg/kg. To find out how many milligrams the client should receive, multiply the client’s weight in kilograms by the dosage in mg/kg: Step 2: 60 kg × 1.5 mg/kg = 90 mg The vial is reconstituted to yield a concentration of 50 mg/mL. To find out how many mL the nurse should administer, divide the total dosage in milligrams by the concentration in mg/mL: Step 3: 90 mg ÷ 50 mg/mL = 1.8 mL So, the nurse should administer 1.8 mL of dantrolene.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Administering oxygen via a face mask is the first intervention the nurse should do. This is because the decrease in fetal heart rate after the last four contractions indicates possible fetal distress, which can be caused by insufficient oxygen. Administering oxygen to the mother can increase the amount of oxygen available to the fetus, potentially alleviating the distress.
Choice B rationale
Applying an internal fetal heart monitor can provide more accurate and continuous data about the fetal heart rate and contractions. However, this is usually not the first intervention because it is invasive and can only be done if the cervix is sufficiently dilated and the membranes have ruptured.
Choice C rationale
Using a vibroacoustic stimulator is a method used to wake a sleeping baby in the womb during a non-stress test. It is not typically used in response to signs of fetal distress during labor.
Choice D rationale
Notifying the healthcare provider is important when there are signs of fetal distress. However, the nurse has interventions, such as administering oxygen, that they can and should do immediately while the healthcare provider is being notified.
Correct Answer is A
Explanation
Choice A rationale
If a patient suddenly experiences numbness and weakness on the right side of their body, including their arm and leg, and a distinct droop on the right side of the patient’s face, these are warning signs of a stroke. The nurse’s first course of action should be to initiate two large- bore IV catheters and review the inclusion criteria for IV fibrinolytic therapy. This is because rapid administration of fibrinolytic therapy can significantly improve outcomes in patients with acute ischemic stroke.
Choice B rationale
Continuous observation for transient episodes of neurologic dysfunction is important, but the immediate priority is to prepare for potential fibrinolytic therapy.
Choice C rationale
Elevating the head of the bed to 30 degrees and keeping the head and neck in neutral alignment can be beneficial in certain situations, but it is not the immediate priority in this scenario.
Choice D rationale
Administering aspirin can help prevent further clot formation and platelet aggregation in patients with acute coronary syndrome or those at high risk of cardiovascular disease.
However, in the case of a suspected stroke, immediate medical evaluation and potential fibrinolytic therapy are the priorities.
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