A nurse is reviewing a client's cardiac monitor for dysrhythmias. Which of the following findings should the nurse identify as an indication for the placement of a permanent pacemaker?

Vasovagal bradycardia without syncope

Complete AV block with rates slower than 40/min

Sinus tachycardia with rates faster than 80/min

Asymptomatic second-degree AV block

Answer and Explanation

The Correct Answer is B

A complete AV block (also called third-degree AV block) is a type of heart block in which there is no electrical communication between the atria and ventricles. This means that the atria and ventricles beat independently of each other, resulting in a slow and irregular pulse. A complete AV block can cause symptoms such as dizziness, fainting, chest pain, shortness of breath, and heart failure.

A permanent pacemaker is a device that sends electrical impulses to the heart to regulate its rhythm and prevent bradycardia (slow heart rate). A permanent pacemaker is indicated for clients with complete AV block and rates slower than 40/min or symptomatic bradycardia.

The other options are not indications for a permanent pacemaker. Vasovagal bradycardia is a temporary drop in heart rate and blood pressure caused by a stimulus that triggers the vagus nerve, such as pain, stress, or straining.

It usually resolves on its own or with simple measures, such as lying down or elevating the legs. Sinus tachycardia is a normal increase in heart rate in response to physical or emotional stress, such as exercise, fever, or anxiety. It usually does not require treatment unless it is caused by an underlying condition or causes symptoms.

Asymptomatic second-degree AV block is a type of heart block in which some of the electrical impulses from the atria are blocked from reaching the ventricles. It may not cause any symptoms or affect the overall heart rate. It may be benign or transient, or it may progress to a more serious type of heart block. It may require monitoring or medication, but not a permanent pacemaker unless it causes symptomatic bradycardia.

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Correct Answer is A

Explanation

The nurse should instruct the client to use a 10-mL syringe or larger to flush the PICC line with normal saline or heparin solution, as prescribed, to prevent occlusion and thrombosis. The other options are incorrect because they may cause complications such as infection, phlebitis, or bleeding.

A. Initiate venous access with a 21-gauge needle. B. Use Y tubing with 0.9% sodium chloride when administering the transfusion. C. Administer the unit of packed RBCs over 1 hr. D. Obtain the client's first set of vital signs 1 hr after initiating the transfusion.

Correct Answer is A

Explanation

Practice standards indicateblood should be infused through a 20-gauge or larger catheter to prevent hemolysis [destruction] of red blood cells. Y tubing with 0.9% sodium chloride is used to administer blood products is not necessary.A unit of packed RBCs should be administered over 2 to 4 hours, unless otherwise ordered by the provider, to reduce the risk of fluid overload and transfusion reactions . The client's vital signs should be obtained before, during (15 minutes after starting and every hour thereafter), and after the transfusion to monitor for any signs of adverse reactions.

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A nurse is reviewing a client's cardiac monitor for dysrhythmias. Which of the following findings should the nurse identify as an indication for the placement of a permanent pacemaker?

Nursing Test Bank

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