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 C
Explanation
The nurse should expect angioedema as one of the manifestations of anaphylaxis in a client experiencing an allergic reaction to an antibiotic. Angioedema is a severe swelling that occurs beneath the skin, typically affecting the face, lips, tongue, throat, or other body parts. It is a result of the release of histamine and other inflammatory mediators in response to the allergen.
Anaphylaxis is a life-threatening allergic reaction that can occur rapidly and affect multiple body systems. In addition to angioedema, other common manifestations of anaphylaxis include:
-
Difficulty breathing or wheezing due to bronchospasm
-
Hives or urticaria, which are itchy raised skin rashes
-
Severe itching or tingling sensation
-
Rapid and weak pulse
-
Low blood pressure leading to hypotension
-
Nausea, vomiting, or diarrhea
-
Feeling of impending doom or anxiety
Let's go through the other options:
A. Hypertonic reflexes: This is not a manifestation of anaphylaxis. "Hypertonic reflexes" are not typically associated with allergic reactions or anaphylaxis. Hypertonic reflexes refer to increased muscle tone, but they are not part of the usual presentation of anaphylaxis.
B. Increase in systolic blood pressure: Anaphylaxis usually leads to a decrease in blood pressure rather than an increase. The decrease in blood pressure can be severe and result in shock, which is a life-threatening condition.
D. Urinary retention: Urinary retention is not a common manifestation of anaphylaxis. Anaphylaxis primarily affects the respiratory and circulatory systems, leading to airway constriction, difficulty breathing, and cardiovascular collapse. Urinary retention is not directly related to the pathophysiology of anaphylaxis.
Correct Answer is D
Explanation
TPN is a form of nutrition given intravenously to provide essential nutrients when a client is unable to consume an adequate oral diet. One of the potential adverse effects of TPN is fluid overload, which can manifest as peripheral edema. The presence of 2+ peripheral pitting edema indicates the accumulation of excess fluid in the tissues. It is important for the nurse to monitor the client's fluid balance closely and assess for signs of fluid overload, such as edema, to prevent complications.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.