Relias Dysrhythmia Basic A *2025-
2026 MATH & RHYTHM MASTERY
KIT* | *450+ CALCULATION
PROBLEMS* with STEP-BY-STEP
SOLUTIONS | Covers: Heart Rate
Calculation + Drug Dosages + EKG
Strip Analysis | Includes NGN-STYLE
CLINICAL JUDGMENT
DRILLS + MEDICATION MATH CHEAT
SHEETS + CRITICAL VALUE
CHARTS | BONUS: Math Anxiety
Reduction Guide & Error Prevention
Checklists | 100% ACCURACY
GUARANTEE
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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
**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,
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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.