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 C
Explanation
The nurse should include in the teaching that hydrochlorothiazide therapy can elevate blood glucose levels in clients who have diabetes. Hydrochlorothiazide is a diuretic commonly used to treat hypertension (high blood pressure). While it is effective in reducing blood pressure, it can sometimes cause adverse effects on blood glucose levels, particularly in individuals with diabetes mellitus.
Hydrochlorothiazide can cause an increase in blood glucose levels by reducing insulin sensitivity, leading to potential hyperglycemia (high blood sugar) in some individuals. Clients with diabetes should closely monitor their blood glucose levels while taking hydrochlorothiazide and inform their healthcare provider if they notice significant changes.
Let's go through the other options:
A. "Blood glucose monitoring is likely to be inaccurate while taking hydrochlorothiazide": This statement is not accurate. Hydrochlorothiazide does not directly affect the accuracy of blood glucose monitoring. However, it is essential for clients with diabetes to be aware of the potential impact of hydrochlorothiazide on their blood glucose levels.
B. "You might need to decrease your insulin dosage while taking hydrochlorothiazide": Hydrochlorothiazide can potentially elevate blood glucose levels, which may require adjustments in diabetes management, including insulin dosage. However, it is not accurate to state that all clients will need to decrease their insulin dosage while taking hydrochlorothiazide. Each client's response to the medication may vary, and adjustments to diabetes medications should be made under the guidance of their healthcare provider based on individual blood glucose monitoring.
D. "Reducing sodium in your diet can help control your blood glucose while taking hydrochlorothiazide": While reducing sodium in the diet is generally a beneficial recommendation for individuals with hypertension, it is not directly related to controlling blood glucose levels in clients with diabetes. The primary focus for individuals with diabetes taking hydrochlorothiazide should be on monitoring blood glucose levels and working with their healthcare provider to manage any changes related to the medication.
Correct Answer is D
Explanation
The nurse should report to the provider that the client is taking ginkgo biloba. Ginkgo biloba is an herbal supplement that can interact with clopidogrel and other antiplatelet medications. It may increase the risk of bleeding when taken concurrently with clopidogrel, which is an antiplatelet medication used to prevent blood clots after coronary artery stenting.
Let's go through the other options:
A. The client is taking acetaminophen: Acetaminophen is not known to have significant interactions with clopidogrel. It is a commonly used pain reliever and fever reducer and does not usually affect the antiplatelet activity of clopidogrel.
B. The client is taking valerian: Valerian is an herbal supplement often used as a sleep aid or to reduce anxiety. While there is limited evidence of significant interactions with clopidogrel, it is generally recommended to use caution when combining valerian with antiplatelet medications. However, it is not as concerning as ginkgo biloba in terms of potential bleeding risk.
C. The client is taking vitamin B6: Vitamin B6 is a water-soluble vitamin and is not expected to have significant interactions with clopidogrel. It is generally considered safe to use vitamin B6 with antiplatelet medications like clopidogrel.
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