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

21. The Immune System

Introduction to First-Line Defenses

Anatomy & Physiology

21. The Immune System

Introduction to First-Line Defenses

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Multiple Choice

In which of the following situations would the extremity lift NOT be appropriate to use on a patient?

The patient has a suspected spinal injury.

The patient has no injuries to the arms or legs.

The patient is conscious and cooperative.

The patient needs to be moved from the floor to a stretcher.

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Verified step by step guidance

Step 1: Understand the extremity lift technique. The extremity lift is a method used to move a patient by lifting them from their arms and legs. It is typically used when the patient is conscious, cooperative, and has no injuries to the extremities.

Step 2: Evaluate the conditions under which the extremity lift is appropriate. The technique is suitable for patients who do not have injuries to their arms or legs, are conscious, and need to be moved from the floor to a stretcher.

Step 3: Consider contraindications for the extremity lift. The extremity lift should NOT be used if the patient has a suspected spinal injury, as this technique does not provide spinal immobilization and could worsen the injury.

Step 4: Analyze the given options. Review each scenario provided in the problem and determine whether it aligns with the contraindications or appropriate use of the extremity lift.

Step 5: Identify the situation where the extremity lift is NOT appropriate. Based on the contraindications, the correct answer is the scenario where the patient has a suspected spinal injury, as this requires spinal immobilization techniques instead of the extremity lift.