Relias Dysrhythmia Basic A
Assessment Test
Inside you will get:
• Exam Focus: EKG strips
• The Exam has passing score of 90%
• 55 Questions and Answers
• Expert-Verified explanation
• Key points
1.Normal sinus rhythm:
Regular Rate: 60-100
P Wave: Present, upright
PR Interval: 0.12-0.20 sec
QRS: <0.12 sec
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**Description**: Normal sinus rhythm indicates that the heart's electrical impulses
are originating from the sinoatrial (SA) node, which is the natural pacemaker of the
heart. This rhythm is characterized by a consistent heart rate, recognizable P
waves before each QRS complex, a normal PR interval, and a narrow QRS
complex, indicating healthy conduction through the ventricles. Normal sinus rhythm
is the ideal rhythm for the heart and reflects normal physiological function.
Key points about normal sinus rhythm:
• Regular rhythm: The intervals between heartbeats (RR intervals) are consistent.
• Rate: Falls within the range of 60-100 beats per minute.
• P wave: Present and upright in most leads, indicating normal atrial depolarization.
• PR interval: The time between the onset of the P wave and the start of the QRS complex,
typically measuring between 0.12-0.20 seconds.
• QRS complex: Represents ventricular depolarization, with a duration less than 0.12 seconds.
2. Sinus Bradycardia:
Regular Rate: <60
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