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CSC Cardiac Nursing Subspecialty

Category - Problems

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A healthy person comes for a routine checkup. The nurse records an EKG, and the patient asks if the EKG is normal. Which of the following EKG findings would be considered a normal variant?

ST-T changes in precordial leads
Wenckebach arrhythmia
PR interval of 21 milliseconds
Saw-tooth pattern

Explanation

Answer: C - First-degree heart block is characterized by prolonged PR interval (greater than 20 milliseconds), but this can be a normal variant in some individuals. The other EKG findings indicate a serious cardiac condition.

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CSC Cardiac Nursing Subspecialty

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CSC Cardiac Nursing Subspecialty

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