The nurse is caring for a client diagnosed with acute decompensated heart failure. The client is increasingly anxious and restless. The nurse should plan to implement which prescribed orders to assist in relieving these symptoms?

Dopamine and 50% non-rebreather mask

Nesiritide IV infusion and digoxin PO

Diazepam IV push and metoprolol IV

Morphine IV and oxygen 2 liters via nasal cannula

Answer and Explanation

The Correct Answer is D

A. Dopamine and 50% non-rebreather mask: Dopamine is a vasopressor used in hypotension or shock, an inotropic agent used to improve cardiac output, not typically first-line for anxiety or respiratory distress. A non-rebreather mask may provide high oxygen levels but can be overwhelming and exacerbate anxiety if not well tolerated.

B. Nesiritide IV infusion and digoxin PO: Nesiritide is a vasodilator which may reduce preload and afterload in heart failure, and digoxin is a positive inotrope that can improve contractility, but neither offers rapid relief for anxiety and dyspnea. These medications have slower onset and are not used primarily for symptom control in acute distress.

C. Diazepam IV push and metoprolol IV: While diazepam may reduce anxiety, it can depress respiration, which is dangerous in decompensated heart failure with potential pulmonary edema. Metoprolol reduces heart rate and contractility and must be used cautiously in acute settings.

D. Morphine IV and oxygen 2 liters via nasal cannula: Morphine reduces preload, anxiety, and the sensation of breathlessness, making it ideal in acute decompensated heart failure. Low-flow oxygen improves oxygenation without overwhelming the patient. This combination directly targets both physiologic and psychological distress.

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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. Atria is taking longer to depolarize and contract B. Conduction time is slowed from the SA node to the ventricles C. The PR interval is within the normal time limits D. Ventricular repolarization is delayed

Correct Answer is C

Explanation

A. Atria is taking longer to depolarize and contract: This would be indicated by a prolonged or abnormal P wave, not a normal PR interval. The rhythm strip shows clearly visible, normal-appearing P waves followed by QRS complexes, ruling this out as the correct interpretation.

B. Conduction time is slowed from the SA node to the ventricles: A slowed conduction time would result in a PR interval longer than 0.20 seconds, characteristic of first-degree AV block. The PR interval on this strip measures within the standard range (0.12–0.20 seconds), so this is not accurate.

C. The PR interval is within the normal time limits: The PR interval on the ECG strip spans about 3 to 4 small boxes (0.12–0.16 seconds), which is within the normal range of 0.12 to 0.20 seconds. This indicates normal conduction from the atria through the AV node to the ventricles.

D. Ventricular repolarization is delayed: Delayed ventricular repolarization refers to a prolonged QT interval, not an abnormality in the PR interval. The PR interval evaluates atrial conduction, not ventricular repolarization, so this is an incorrect association.

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Potassium 2.8 mEq/L
Sodium 133 mEq/L
Chloride 90 mEq/L
Glucose 200 mg/dl
Magnesium 2.5 mg/dL
Calcium 8.0 mg/dL

The nurse is caring for a client diagnosed with acute decompensated heart failure. The client is increasingly anxious and restless. The nurse should plan to implement which prescribed orders to assist in relieving these symptoms?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse observes the following rhythm of a client on the telemetry unit. Which action should be completed first?

Correct Answer is B

Explanation

The nurse who is working in the telemetry unit measures the PR interval of the client's rhythm strip depicted below. What is the nurse's analysis of the PR interval?

Correct Answer is C

Explanation

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