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A nurse is interpreting the ECG strip of a client who has bradycardia. Which cardiac components should the nurse identify as the role of the P wave?

A.

Early ventricular repolarization

B.

Atrial depolarization

C.

Slow repolarization of ventricular Purkinje fibers

D.

Ventricular depolarization

Answer and Explanation

The Correct Answer is B

A. Early ventricular repolarization is represented by the T wave, not the P wave.  

 

B. The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria.  

 

C. Slow repolarization of ventricular Purkinje fibers is represented by the T wave, not the P wave.  

 

D. Ventricular depolarization is represented by the QRS complex, not the P wave.


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View Related questions

Correct Answer is D

Explanation

A. Bradypnea (slow breathing) may occur in various conditions but is not a defining characteristic of cyanosis.

B. A pale reddish color in the skin is not consistent with cyanosis, which indicates a lack of oxygen in the blood.

C. Somnolence (drowsiness) may be present in some patients, but it is not a specific finding related to cyanosis.

D. Mottled blue color in the skin is a classic sign of cyanosis, indicating inadequate oxygenation of the blood, especially in the extremities or areas with poor circulation.

Correct Answer is B

Explanation

A. Gynecomastia refers to breast tissue enlargement in males and does not typically relate to the menstrual cycle.

B. Cyclic pain refers to breast pain that is linked to the menstrual cycle, commonly occurring before menstruation and subsiding during or after menstruation.

C. Mammary pain is a broader term that may refer to any breast pain, but it does not specify the cyclical nature related to menstruation.

D. Noncyclic pain refers to breast pain not related to the menstrual cycle and does not follow the described pattern.

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