Table of contents

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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 the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

A client is experiencing anaphylaxis. What drug will the nurse most likely administer?

Beta-blocker

Corticosteroid

Epinephrine

Antihistamine

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Verified step by step guidance

Understand the condition: Anaphylaxis is a severe, potentially life-threatening allergic reaction that can occur rapidly. It requires immediate medical attention.

Identify the symptoms: Common symptoms of anaphylaxis include difficulty breathing, swelling, hives, a drop in blood pressure, and a rapid, weak pulse.

Recognize the first-line treatment: The primary drug used to treat anaphylaxis is epinephrine. It works quickly to improve breathing, stimulate the heart, and reduce swelling and hives.

Consider the mechanism of action: Epinephrine is a sympathomimetic drug that acts on alpha and beta-adrenergic receptors, leading to vasoconstriction, bronchodilation, and increased cardiac output.

Note the administration route: Epinephrine is typically administered via an intramuscular injection, often using an auto-injector (e.g., EpiPen), for rapid absorption and effect.