Rhythm Strip

A client comes to the emergency department (ED) complaining of a "racing heart and nervousness." The client's blood pressure is 106/60. The cardiac monitor displays the rhythm below. Which nursing action should be performed first?

Prepare the client for electrical cardioversion

Perform a carotid massage on the client.

Administer lidocaine 1mg/hour.

Ask the client if they drank a caffeinated beverage

Answer and Explanation

The Correct Answer is B

A. Prepare the client for electrical cardioversion: Electrical cardioversion is reserved for unstable patients (e.g., hypotension, altered mental status, chest pain, or signs of shock). This client, while tachycardic, has a blood pressure of 106/60, which indicates relative stability. Cardioversion is not the first-line intervention in stable supraventricular tachycardia (SVT).

B. Perform a carotid massage on the client: Carotid sinus massage is a vagal maneuver used to slow conduction through the AV node and can terminate paroxysmal supraventricular tachycardia (PSVT). It is a non-invasive, first-line intervention for a stable patient with narrow-complex tachycardia, as shown on the ECG strip.

C. Administer lidocaine 1 mg/hour: Lidocaine is an antiarrhythmic used primarily to treat ventricular arrhythmias, such as ventricular tachycardia or fibrillation. It is not indicated for atrial or supraventricular tachycardias and would not address the underlying rhythm.

D. Ask the client if they drank a caffeinated beverage: While excessive caffeine intake can contribute to tachycardia, asking about caffeine use does not address the acute arrhythmia or guide immediate treatment. It may be part of history-taking but is not a priority intervention in this situation.

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Correct Answer is B

Explanation

A. Administer amiodarone IV push followed by a continuous infusion: Amiodarone is part of the Advanced Cardiac Life Support (ACLS) algorithm for ventricular fibrillation (VF) or pulseless ventricular tachycardia, but it should only be given after confirming the rhythm and initiating basic life support steps, including pulse check.

B. Establish unresponsiveness and check the carotid pulse: The rhythm strip shows ventricular fibrillation, a life-threatening arrhythmia. However, before initiating advanced interventions such as defibrillation, the nurse must first confirm the client is unresponsive and pulseless, which is the correct initial action according to ACLS protocols.

C. Immediately defibrillate the client using the synchronous mode: Defibrillation is the correct treatment for VF, but it must be done in unsynchronized mode. Additionally, it is not appropriate to defibrillate until pulselessness is confirmed. Synchronized mode is used for rhythms like unstable SVT or atrial fibrillation not VF.

D. Initiate a rapid response call and increase the monitor’s sensitivity: A rapid response team is called for deteriorating patients who are still responsive. If the client is unresponsive and pulseless, a code blue or cardiac arrest protocol should be initiated, not just a rapid response. Monitor sensitivity adjustments are irrelevant in a confirmed life-threatening rhythm.

A. The TEE evaluates if emboli are present if cardioversion is required B. The study will use electric current to stop the abnormal conduction pathway C. A TEE will help restore the client's underlying baseline normal rhythm, D. A TEE is required prior to implantable defibrillator placement in clients with atrial fibrillation

Correct Answer is A

Explanation

A. The TEE evaluates if emboli are present if cardioversion is required: A transesophageal echocardiogram (TEE) provides detailed imaging of the heart’s chambers, particularly the left atrium and left atrial appendage, where clots often form in atrial fibrillation. It is used to rule out thrombi before cardioversion to reduce the risk of stroke during the procedure.

B. The study will use electric current to stop the abnormal conduction pathway: This describes electrical cardioversion, not TEE. TEE is a diagnostic imaging procedure and does not involve the delivery of electrical currents to modify the heart's rhythm or conduction.

C. A TEE will help restore the client's underlying baseline normal rhythm: TEE does not treat arrhythmias. Its role is diagnostic—to visualize cardiac structures, not to restore normal rhythm. Cardioversion or pharmacologic agents are required to correct atrial fibrillation.

D. A TEE is required prior to implantable defibrillator placement in clients with atrial fibrillation: TEE is not routinely required before implantable cardioverter-defibrillator (ICD) placement. ICD decisions are usually based on ejection fraction, rhythm stability, and risk of sudden cardiac arrest, not the presence or absence of atrial thrombi.

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WBC	8.5
Hemoglobin	17g/dL
Hematocrit	54%
BUN	28mg/dL
Creatinine	1.1 mg/dL
Potassium	4.9 mEq/L

Rhythm Strip A client comes to the emergency department (ED) complaining of a "racing heart and nervousness." The client's blood pressure is 106/60. The cardiac monitor displays the rhythm below. Which nursing action should be performed first?

Nursing Test Bank

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Explanation

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Correct Answer is A

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Rhythm Strip

A client comes to the emergency department (ED) complaining of a "racing heart and nervousness." The client's blood pressure is 106/60. The cardiac monitor displays the rhythm below. Which nursing action should be performed first?