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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Alopecia: Alopecia, or hair loss, is a common side effect of many chemotherapy drugs, including paclitaxel. While it can be distressing for the client, alopecia is not a life-threatening side effect and does not require immediate intervention. It is essential for the nurse to provide emotional support to the client experiencing hair loss and educate them about potential ways to cope with it.
B. Muscle pain: Muscle pain, also known as myalgia, is another common side effect of paclitaxel and many other chemotherapy agents. While it can cause discomfort for the client, myalgia is generally managed with pain medications and supportive care. It is not a priority finding that requires immediate reporting to the provider unless it becomes severe or debilitating.
C. Nausea: Nausea is a well-known side effect of chemotherapy, including paclitaxel. It is often managed with antiemetic medications and other supportive measures. While severe or persistent nausea can lead to dehydration and other complications, it is not an immediate life-threatening concern in most cases.
D. Bradycardia: This is the correct answer. Bradycardia (slow heart rate) is a less common but more concerning side effect of paclitaxel. It may indicate potential cardiac toxicity, which is a serious and potentially life-threatening complication. The healthcare provider should be notified promptly so that appropriate evaluation and intervention can be initiated to manage any cardiac issues and prevent further complications.
Correct Answer is ["B","E"]
Explanation
The nurse should monitor the following laboratory tests to determine the effectiveness of epoetin alfa:
B. Hemoglobin: Epoetin alfa is a medication used to treat anemia by stimulating red blood cell production. Monitoring hemoglobin levels can help assess if the medication is effectively increasing red blood cell production and improving anemia.
E. Iron: Iron is essential for red blood cell production. Monitoring iron levels can help determine if the client has adequate iron stores to support the increased production of red blood cells stimulated by epoetin alfa.
The other options listed, A. Thyroid-stimulating hormone, C. Blood glucose, and D. Alanine aminotransferase, are not directly related to the effectiveness of epoetin alfa in treating anemia. Thyroid-stimulating hormone is related to thyroid function, blood glucose is related to blood sugar control, and alanine aminotransferase is related to liver function. While these tests may be important for monitoring the overall health of the client, they are not specific indicators of the effectiveness of epoetin alfa.
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