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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

How does the rule of nines assist in determining if a burn should be classified as critical?

It calculates the time required for burn healing based on patient age.

It measures the depth of the burn to determine if it is first, second, or third degree.

It estimates the percentage of body surface area affected by burns to assess severity.

It identifies the type of chemical involved in the burn injury.

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Verified step by step guidance

Understand the rule of nines: The rule of nines is a method used in medical practice to estimate the percentage of total body surface area (TBSA) affected by burns. It divides the body into regions, each representing approximately 9% (or multiples of 9%) of the TBSA.

Learn the significance of TBSA estimation: Determining the percentage of TBSA affected by burns is crucial for assessing the severity of the injury and deciding whether it should be classified as critical. Burns covering a large percentage of the body can lead to complications such as fluid loss, infection, and shock.

Apply the rule of nines to assess severity: For adults, the body is divided into regions such as the head and neck (9%), each arm (9%), each leg (18%), the front of the torso (18%), and the back of the torso (18%). Add the percentages of the affected areas to estimate the total TBSA burned.

Determine critical burn criteria: Burns are classified as critical if they meet certain criteria, such as covering more than 25% of TBSA for second-degree burns, more than 10% of TBSA for third-degree burns, or involving sensitive areas like the face, hands, feet, or genitals.

Use the TBSA estimation to guide treatment: Once the percentage of TBSA affected is calculated, healthcare providers can decide on the appropriate treatment plan, which may include fluid resuscitation, wound care, and hospitalization for severe cases.