Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

18. The Heart

Electrical Conduction System of the Heart

Anatomy & Physiology

18. The Heart

Electrical Conduction System of the Heart

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Multiple Choice

In which of the following situations should you avoid administering a synchronized shock?

During ventricular fibrillation

During supraventricular tachycardia

During atrial fibrillation

During atrial flutter

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Verified step by step guidance

Understand the purpose of synchronized shock: Synchronized shock, or cardioversion, is used to restore a normal heart rhythm in cases of certain types of arrhythmias by delivering a controlled electric shock synchronized with the R wave of the QRS complex.

Identify the types of arrhythmias: The arrhythmias mentioned are ventricular fibrillation, supraventricular tachycardia, atrial fibrillation, and atrial flutter. Each has different characteristics and treatment protocols.

Recognize the characteristics of ventricular fibrillation: Ventricular fibrillation is a life-threatening condition where the heart quivers instead of pumping due to disorganized electrical activity. It requires immediate defibrillation, not synchronized cardioversion.

Differentiate between defibrillation and synchronized cardioversion: Defibrillation is used in life-threatening arrhythmias like ventricular fibrillation and pulseless ventricular tachycardia, where there is no coordinated heart rhythm to synchronize with.

Conclude the appropriate action: Since ventricular fibrillation requires immediate defibrillation and not synchronized cardioversion, avoid administering a synchronized shock in this situation.