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
When providing discharge teaching to a client with a prescription for enoxaparin, the nurse should include the instruction to expel the air bubble prior to injecting the medication. Enoxaparin is a type of anticoagulant medication that is administered as a subcutaneous injection.
Here's why the other options are incorrect:
A. Insert the needle at a 45 angle: Enoxaparin is typically administered as a subcutaneous injection, where the needle is inserted at a 90-degree angle (straight into the skin). A 45-degree angle is used for intramuscular injections, but it is not appropriate for enoxaparin administration.
B. Inject the medication into a muscle: Enoxaparin is not intended to be injected into a muscle. It is a low-molecular-weight heparin designed for subcutaneous administration, meaning it is injected just below the skin into the fatty tissue.
C. Rub the injection site following administration: Rubbing the injection site after administering enoxaparin or any other subcutaneous medication is not recommended. Rubbing the site can cause irritation and bruising. Instead, the nurse should apply gentle pressure with a cotton ball or gauze pad for a few seconds after the injection to help minimize bleeding.
Correct Answer is ["A","C","D","E"]
Explanation
The nurse should plan to take the following actions:
A.Verify the prescription: Before administering any medication, the nurse must verify the prescription to ensure accuracy, appropriateness, and that it matches the provider's order.
Regarding option B, administering the medication at 1000, 1400, 1800, and 2200 may not be appropriate. The prescription states that ampicillin should be administered every 6 hours. The nurse should administer the medication at equally spaced intervals throughout the day. If the medication is prescribed every 6 hours, the appropriate administration times would be 0600, 1200, 1800, and 2400. However, the question does not provide sufficient information to determine the exact administration times, so option B cannot be definitively selected.
C. Assess the client for an allergy to penicillin: Since ampicillin is a penicillin-class antibiotic, it is essential for the nurse to assess the client for any history of allergies to penicillin or other beta-lactam antibiotics. A penicillin allergy could lead to a severe allergic reaction, so it is crucial to identify any potential allergies before administering the medication.
D. Document giving the medications: After administering the ampicillin, the nurse should document the administration in the client's medical record, including the time, dose, route, and any relevant observations or assessments.
E. Obtain a sputum for culture and sensitivity: The client's new prescription for ampicillin may be related to an infection. To ensure appropriate and effective treatment, obtaining a sputum specimen for culture and sensitivity is necessary. This will help identify the specific bacteria causing the respiratory infection and determine which antibiotics will be most effective in treating it.
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