A nurse is preparing to administer metoprolol 5 mg IV bolus to a client for heart rate control. Available is metoprolol injection 1 mg/mL. How many mL should the nurse administerperdose?
The Correct Answer is ["5"]
To calculate how many milliliters (mL) of metoprolol 1 mg/mL solution should be administered to deliver a 5 mg IV bolus dose, you can use the following formula:
Dose (mL) = Desired dose (mg) / Concentration (mg/mL)
In this case:
Desired dose = 5 mg
Concentration = 1 mg/mL
Dose (mL) = 5 mg / 1 mg/mL = 5 mL
Therefore, the nurse should administer 5 mL of metoprolol 1 mg/mL solution per dose to deliver a 5 mg IV bolus for heart rate control.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Remove the client's IV access:
Removing the client's IV access is not the most appropriate initial action when a client experiences difficulty breathing and severe chest tightness during a transfusion. While it's important to discontinue the infusion, the immediate priority is to stop the transfusion itself to prevent further reaction and assess the client's condition.
B. Assess the client's chest sounds and vital signs:
This choice is the correct answer. After stopping the transfusion, the nurse should assess the client's respiratory status by listening to chest sounds for any wheezing or crackles, as well as checking vital signs such as oxygen saturation, respiratory rate, blood pressure, and heart rate. These assessments help evaluate the severity of the reaction and guide further interventions.
C. Notify the client's healthcare provider:
Notifying the healthcare provider is an essential step, but it typically follows the immediate action of stopping the transfusion and assessing the client's condition. The healthcare provider needs to be informed promptly about the client's condition, transfusion reaction, and the actions taken for further guidance and orders.
D. Stop the transfusion immediately:
This is the initial and most critical action when a client experiences signs of a transfusion reaction such as difficulty breathing and severe chest tightness. Stopping the transfusion promptly helps prevent the reaction from worsening and allows for immediate assessment and intervention to ensure client safety.
Correct Answer is B
Explanation
A. The nurse stays with the client for 15 minutes after beginning the transfusion:
This action is appropriate as it ensures the nurse monitors the client closely for any immediate adverse reactions during the initial phase of the transfusion.
B. The nurse primes the blood tubing with lactated Ringer's solution:
This action is incorrect and potentially dangerous. Blood tubing should be primed with normal saline (0.9% sodium chloride) solution, not lactated Ringer's solution, to prevent potential adverse reactions or hemolysis of the blood products.
C. The nurse starts the infusion at a slow rate for the first 15 minutes:
This action is appropriate as it allows for the initial assessment of the client's tolerance to the transfusion and reduces the risk of adverse reactions.
D. The nurse witnesses the client sign the consent form for the blood transfusion:
This action is appropriate and ensures that the client has provided informed consent for the procedure.
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