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A nurse is reviewing cardiac rhythms and heart blocks for a critical care course. The nurse is aware that which of the following describes first degree heart block?

The PR interval gets longer then drops.

PR interval greater than 0.20 seconds in duration

There are absent P waves

R-R is irregular

Answer and Explanation

The Correct Answer is B

Rationale:

A. This describes a second-degree heart block, specifically Mobitz Type I (Wenckebach).

B. A PR interval greater than 0.20 seconds is characteristic of first-degree heart block.

C. This describes third-degree heart block, also known as complete heart block.

D. An irregular R-R interval is not specific to first-degree heart block.

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Correct Answer is ["A","B","C","D","E","F"]

Explanation

Rationale:

A. Distribution refers to the area of the body where the pain is felt.

B. Onset refers to when the pain started.

C. Intensity refers to the severity of the pain.

D. Location refers to where the pain is felt.

E. Radiation refers to whether the pain spreads to other areas.

F. Alleviated refers to what makes the pain better or worse.

A. "The next pacemaker check will be when the batteries need to be replaced." B. "My pacemaker will need reprogramming if I stand too close to a microwave oven." C. "I will take my pulse weekly." D. "The pacemaker can be checked from home by using the telephone."

Correct Answer is D

Explanation

A. Regular pacemaker checks are scheduled periodically, not only when the battery needs replacement.
B. Modern pacemakers are well-shielded and are not affected by household microwaves.
C. Clients should check their pulse daily to ensure proper pacemaker function, not just weekly.
D. Many pacemakers can be checked remotely using telephone or wireless technology, allowing for convenient monitoring.

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A nurse is reviewing cardiac rhythms and heart blocks for a critical care course. The nurse is aware that which of the following describes first degree heart block?

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