Multiple Choice
What is anaphylactic shock in someone sensitive to peanuts?
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21. The Immune System
Introduction to the Immune System
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Which factor may precipitate a sickle cell crisis, disrupting homeostasis?
A
Regular exercise
B
High altitude
C
Increased oxygen levels
D
Dehydration
Verified step by step guidance1
Understand the nature of sickle cell disease: It is a genetic disorder that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body.
Recognize that sickle cell crisis is a painful episode that occurs when sickle-shaped red blood cells block blood flow through tiny blood vessels to your chest, abdomen, and joints.
Identify factors that can trigger a sickle cell crisis. These include low oxygen levels, dehydration, high altitude, and extreme temperatures.
Analyze why dehydration can precipitate a sickle cell crisis: Dehydration reduces blood volume, which can increase the concentration of sickle cells in the blood, leading to blockages in blood vessels.
Conclude that maintaining proper hydration is crucial for individuals with sickle cell disease to help prevent crises and maintain homeostasis.
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