A nurse is preparing to administer dopamine 5 mcg/kg/min by continuous IV infusion to a client who weighs 220 lb. Available is 400 mg of dopamine in 250 mL of 0.9% sodium chloride. The nurse should set the IV pump to deliver how many mi/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["18.8"]
To calculate the rate at which the IV pump should deliver dopamine, we can follow these steps:
Step 1: Convert the weight of the client from pounds to kilograms.
220 lb ÷ 2.2 = 100 kg (rounded to the nearest whole number)
Step 2: Calculate the total dose of dopamine per minute.
5 mcg/kg/min × 100 kg = 500 mcg/min
Step 3: Convert the dose from micrograms (mcg) to milligrams (mg).
500 mcg/min ÷ 1000 = 0.5 mg/min
Step 4: Determine the infusion rate in milliliters per hour (mL/hr).
The total volume of the solution is 250 mL.
The total dose of dopamine is 400 mg.
So, the infusion rate is (0.5 mg/min ÷ 400 mg) × 250 mL = 0.3125 mL/min.
Step 5: Convert the infusion rate from mL/min to mL/hr.
0.3125 mL/min × 60 min/hr = 18.75 mL/hr (rounded to the nearest tenth).
Therefore, the nurse should set the IV pump to deliver 18.8 mL/hr (rounded to the nearest tenth).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
When planning care for a client who had a myocardial infarction and is receiving thrombolytic therapy with an IV infusion of alteplase, the nurse should include the intervention of monitoring for changes in the client's level of consciousness.
Alteplase is a thrombolytic medication used to break down blood clots in certain medical emergencies, such as acute myocardial infarction (heart attack) or ischemic stroke. One of the potential complications of thrombolytic therapy, including alteplase, is bleeding. The medication's action of breaking down blood clots can also affect the body's natural clotting mechanisms, increasing the risk of bleeding.
Bleeding in the brain is a severe and potentially life-threatening complication associated with thrombolytic therapy. Therefore, it is essential for the nurse to closely monitor the client for any signs of intracranial bleeding, such as changes in the level of consciousness, confusion, severe headache, slurred speech, or weakness on one side of the body.
Let's go through the other options:
A. Administer aspirin instead of acetaminophen for fever: While aspirin is commonly used in the management of myocardial infarction, it is not specifically indicated for fever. Acetaminophen is the preferred antipyretic medication for fever management in most cases, and it does not interfere with the action of thrombolytic therapy.
B. Ambulate the client as often as tolerated: While early ambulation is beneficial for clients with myocardial infarction, it may not be appropriate during thrombolytic therapy. Thrombolytic therapy carries an increased risk of bleeding, and ambulation may be limited or contraindicated during the treatment period, depending on the client's overall condition and bleeding risk.
C. Administer a sodium phosphate enema for constipation: The administration of a sodium phosphate enema is not a specific intervention related to thrombolytic therapy or myocardial infarction. Bowel management is important for client comfort and overall well-being, but it is not a priority intervention in the immediate care of a client undergoing thrombolytic therapy.
Correct Answer is D
Explanation
A. Intake and output: Monitoring intake and output is essential in the postoperative care of a client to assess fluid balance and kidney function. However, it is not the priority assessment when the client has received isoflurane in the PACU. The priority assessment in this situation is related to the potential cardiovascular side effect of isoflurane, which is hypotension. Hypotension can have immediate and significant implications for the client's perfusion and overall well-being, requiring prompt attention and intervention.
B. Non-verbal pain cues: Assessing for pain is important in the postoperative period to ensure adequate pain management and comfort for the client. However, it is not the priority assessment when the client has received isoflurane in the PACU. The priority assessment at this time is related to the potential cardiovascular impact of the anesthesia, which is blood pressure. Addressing hypotension takes precedence over pain assessment as it poses a more immediate threat to the client's well-being.
C. Bowel sounds: Assessing bowel sounds is part of a comprehensive postoperative assessment to monitor the return of bowel function after surgery. While it is important, it is not the priority assessment when the client has received isoflurane in the PACU. The priority assessment in this situation is related to the potential cardiovascular side effect of the anesthesia, which is blood pressure. Monitoring and managing hypotension is of greater concern in the immediate postoperative period.
D. Blood pressure: This is the correct answer. The priority assessment for a client who received isoflurane in the PACU is the blood pressure. Isoflurane is an inhalation anesthetic that can cause hypotension (low blood pressure). Monitoring the client's blood pressure is crucial to promptly identify and address any hypotension, as it can lead to inadequate tissue perfusion and oxygenation. Addressing blood pressure deviations is essential for the client's cardiovascular stability and overall recovery in the PACU.
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