An client being assessed in the emergency room is anxious about their health status. The ECG rhythm strip shows a heart rate of 120 beats/min. Characteristics of a sinus tachycardia rhythm are

Atrial rhythm regular, ventricular rhythm irregular

P:QRS ratio of 1:1

P:QRS ratio of 2:1

Ventricular and atrial rhythm are irregular

Answer and Explanation

The Correct Answer is B

A. An atrial rhythm regular and ventricular rhythm irregular would suggest an arrhythmia such as atrial fibrillation or flutter with variable conduction—not sinus tachycardia.
B. In sinus tachycardia, the rhythm is regular, the P:QRS ratio is 1:1, meaning each P wave is followed by a QRS complex, and the origin is from the sinus node.
C. A 2:1 P:QRS ratio is characteristic of certain types of heart block or atrial flutter—not sinus tachycardia.
D. Irregular ventricular and atrial rhythms are seen in atrial fibrillation or other irregular arrhythmias, not sinus tachycardia.

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Correct Answer is B

Explanation

A. Fluids are usually encouraged to help flush out contrast dye, so restricting fluid intake is not appropriate.
B. Performing neurovascular checks along with vital signs is essential to monitor for complications such as bleeding, hematoma, or impaired circulation after femoral artery access.
C. Range-of-motion exercises on the affected leg may increase the risk of bleeding or hematoma and are generally avoided initially.
D. Early ambulation (such as within 1 hour) is usually contraindicated; clients are typically kept on bed rest for several hours to prevent bleeding at the catheter site.

A. Ventricular tachycardia B. Multifocal premature ventricular contractions C. Ventricular couplets D. Ventricular bigeminy

Correct Answer is D

Explanation

A. Ventricular tachycardia is a run of three or more consecutive ventricular beats at a rapid rate, not every other beat.
B. Multifocal premature ventricular contractions (PVCs) arise from different ventricular foci and have different shapes, but this scenario describes uniform shape and consistent pattern.
C. Ventricular couplets are two consecutive PVCs, not a pattern where every other beat is abnormal.
D. Ventricular bigeminy is the correct term for a rhythm in which every other beat is a premature ventricular contraction (PVC). These PVCs typically have no visible P wave and a wide, bizarre QRS complex, matching the description given.

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An client being assessed in the emergency room is anxious about their health status. The ECG rhythm strip shows a heart rate of 120 beats/min. Characteristics of a sinus tachycardia rhythm are

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Naxlex Comprehensive Predictor Exams

A nurse is planning care for a client following a cardiac catheterization accessed through his femoral artery. Which of the following actions should the nurse plan to take?

Correct Answer is B

Explanation

The nurse notes that a client's cardiac monitor shows that every other beat is earlier than expected, has no visible P wave, and has a QRS complex that is wide and bizarre in shape. How will the nurse document the rhythm?

Correct Answer is D

Explanation

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