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).
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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 A
Explanation
When providing teaching to a client with chronic rheumatoid arthritis who is starting a new prescription for hydroxychloroquine, the nurse should instruct the client to obtain routine eye examinations. Hydroxychloroquine is an antimalarial and immunosuppressive medication commonly used to treat rheumatoid arthritis and other autoimmune conditions.
One of the potential side effects of hydroxychloroquine is ocular toxicity, particularly affecting the retina. Retinal toxicity can lead to vision changes or, in severe cases, irreversible damage to the eyes. Therefore, regular eye examinations are necessary to monitor for any signs of retinal toxicity and detect any visual changes early to prevent further complications.
The American Academy of Ophthalmology recommends that patients taking hydroxychloroquine undergo a baseline eye examination before starting the medication and annual eye examinations thereafter, especially after five years of continuous use.
Let's go through the other options:
B. Chest x-ray: A chest x-ray is not routinely required for monitoring clients taking hydroxychloroquine for rheumatoid arthritis. Hydroxychloroquine is not known to cause significant respiratory or pulmonary side effects.
C. Pancreatic enzyme levels: Monitoring pancreatic enzyme levels is not specifically related to hydroxychloroquine therapy. Pancreatic enzyme level testing is typically used to assess the function of the pancreas in conditions like pancreatitis or pancreatic insufficiency.
D. Urinalysis screening: While regular monitoring of kidney function is important for clients on long-term medication therapy, routine urinalysis screening is not specifically related to hydroxychloroquine use in clients with rheumatoid arthritis. Regular eye examinations are of higher priority due to the potential ocular toxicity associated with this medication.
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