A client who weighs 176 pounds receives a prescription for norepinephrine 2 mcg/min intravenously (IV). The IV bag is labeled, "Norepinephrine 4 mg in dextrose 5% in water (D;W) 1,000 mL." How many mL/hour should the nurse program the infusion pump? (Enter numerical value only.).
The Correct Answer is ["30"]
The correct answer is 30 mL/hour.
Step 1 is to calculate the total amount of norepinephrine in the IV bag: 4 mg norepinephrine ÷ 1000 mL = 0.004 mg/mL
Step 2 is to convert the patient's weight from pounds to kilograms: 176 pounds ÷ 2.2 = 80 kilograms
Step 3 is to calculate the total amount of norepinephrine the patient will receive per minute: 2 mcg/min × 60 min = 120 mcg/min
Step 4 is to convert micrograms (mcg) to milligrams (mg): 120 mcg ÷ 1000 = 0.12 mg
Step 5 is to calculate the total volume of norepinephrine needed per hour: 0.12 mg ÷ 0.004 mg/mL = 30 mL/hour
Therefore, the nurse should program the infusion pump to deliver 30 mL/hour.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Assisting in discharging stable clients to home is not the most appropriate assignment when a mass casualty event has occurred. During such events, resources are needed for critically injured patients, and stable clients can typically be discharged by non-emergency staff.
Choice B rationale:
Determining the acuity and number of casualties arriving at the facility is the most appropriate assignment during a mass casualty event. This information is critical for allocating resources and providing the necessary level of care to those affected.
Choice C rationale:
Delegating tasks to emergency healthcare specialists may be necessary, but it is not the initial assignment for the nurse working on a medical-surgical unit. Assessing the situation and determining the acuity of incoming casualties take precedence.
Choice D rationale:
Providing informational updates to members of the media is not the role of a nurse during a mass casualty event. This task should be handled by hospital public relations or designated spokespersons to ensure accurate and controlled information dissemination.
Correct Answer is B
Explanation
The correct answer is B
Choice A reason: Vasopressin is not typically associated with decreasing GI cramping and nausea. It is used to treat diabetes insipidus and to reduce stomach bloat for some procedures and after some surgeries.
Choice B reason: Vasopressin can cause chest pain or pressure, and fast, slow, or abnormal heartbeat, which are indicative of dysrhythmia. These are known side effects of vasopressin and should be monitored during IV infusion.
Choice C reason: Vasopressin causes vasoconstriction, not vasodilation. It tightens small blood vessels, which is the opposite of vasodilation.
Choice D reason: While vasopressin can cause bradycardia (slow heart rate), hypotension is not a common effect as it is used to treat low blood pressure. Tachycardia (fast heart rate) is not a typical side effect of vasopressin.
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