Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            ng the number of QRS complexes
    in a specific time interval.
Rhythm: Assess the regularity of the rhythm by measuring the intervals
   between beats.
 
P Wave Analysis: Evaluate the presence and morphology of P waves 
    to assess atrial activity.
QRS Complex Analysis: Check the width and morphology of the QRS
   complex to identify ventricular activity.
ST Segment and T Wave Analysis: Examine the ST segment for
   elevation or depression and the T wave for abnormalities.
2. Common ECG Findings
Some common findings include:
 
Sinus Rhythm: Normal heart rhythm with a regular
     rate.
 
Atrial Fibrillation: Irregularly irregular rhythm with
    no discernible P waves.
 
Myocardial Infarction: Elevated ST segments,
    indicative of acute ischemia.
Conclusion
While ECG is a powerful tool, it has limitations. It may not detect all 
cardiac conditions, such as certain types of ischemia or structural 
abnormalities. Recent advancements, such as portable ECG devices and 
telemedicine, have improved access to cardiac monitoring. ECG findings 
must always be interpreted in conjunction with clinical history and 
symptoms. This holistic approach ensures accurate diagnosis and 
appropriate management.
Electrocardiography remains an essential tool in modern medicine for 
diagnosing and monitoring cardiovascular conditions. Understanding its 
principles, components, and clinical applications is crucial for healthcare 
professionals. As technology evolves, ECG will continue to play a vital 
role in improving patient outcomes and enhancing our understanding of 
cardiac health.
Arrhythmia
Arrhythmias are disorders of the heart’s rhythm that can 
disrupt the normal flow of blood through the heart and body. 
The heart’s rhythm is controlled by electrical impulses that 
trigger each heartbeat, and any disturbance in these impulses 
can lead to arrhythmias. These conditions can range from 
harmless to life-threatening and can significantly impact a 
person’s health.
Definition: An arrhythmia is defined as any deviation from
the normal rhythm of the heart, which can manifest as a
change in the rate, rhythm, or pattern of the heartbeat.
Classification: Arrhythmias are classified based on several factors, including their origin in the 
heart (atrial, ventricular, or junctional), their rate (bradycardia or tachycardia), and their regularity
(regular or irregular). The main categories include:
1.Tachyarrhythmias: Rapid heart rhythms, typically defined as a heart rate over 100 beats per minute
(bpm). Examples include:
  Atrial fibrillation
  Ventricular tachycardia
  Supraventricular tachycardia (SVT)
2. Bradyarrhythmias: Slow heart rhythms, typically defined as a heart rate below 60 bpm. Examples 
include:
  Sinus bradycardia
  Heart block (e.g., first-degree, second-degree, third-degree)
3. Irregular rhythms: Conditions where the heart rate is irregular, such as:
 Atrial flutter
 Atrial fibrillation
Pathophysiology of Arrhythmias
The heart’s electrical system contr

            Quiz: