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?
Early ventricular repolarization
Atrial depolarization
Slow repolarization of ventricular Purkinje fibers
Ventricular depolarization
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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Correct Answer is D
Explanation
A. The tympanic temperature of 37.1° C (98.8° F) is within normal limits and does not require re-measurement.
B. The respiratory rate of 14/min is also within the normal range (12-20 breaths per minute).
C. The blood pressure of 98/77 mm Hg is not alarmingly low and does not require immediate re-measurement.
D. A pulse rate of 42/min indicates bradycardia (normal resting heart rate is typically between
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.