Anaemic hypoxia affects the body by what means?

Anaemic hypoxia affects the body by what means?

• A. Insufficient oxygen reaching the lungs
• B. The blood being unable to absorb and carry oxygen
• C. Reduction in blood flow
• D. Cells unable to absorb oxygen

Answer: (B)

Anaemic hypoxia occurs when the blood's capability to carry oxygen is impaired, typically due to a deficiency of hemoglobin or alterations in its structure or function. In this scenario, even if the lungs are functioning properly and the oxygen is available, the blood lacks the ability to effectively absorb and transport that oxygen to the tissues. This condition can arise from various factors, such as low hemoglobin levels due to anemia, carbon monoxide poisoning, or even certain medical conditions that affect hemoglobin's ability to bind oxygen. Consequently, the underlying issue is not the availability of oxygen in the environment or lungs, but rather the blood's inability to transport it effectively, making option B the correct response. Other options describe different mechanisms of hypoxia. The first option refers to issues with lung function, which might involve conditions like respiratory diseases that prevent sufficient oxygen from reaching the bloodstream. The third option pertains to circulatory issues that might restrict blood flow, affecting oxygen delivery to tissues. Finally, the fourth option concerns the ability of cells to utilize oxygen, which is unrelated to the oxygen-carrying capacity of the blood itself but rather deals with cellular metabolism.

Anaemic hypoxia occurs when the blood's capability to carry oxygen is impaired, typically due to a deficiency of hemoglobin or alterations in its structure or function. In this scenario, even if the lungs are functioning properly and the oxygen is available, the blood lacks the ability to effectively absorb and transport that oxygen to the tissues.

This condition can arise from various factors, such as low hemoglobin levels due to anemia, carbon monoxide poisoning, or even certain medical conditions that affect hemoglobin's ability to bind oxygen. Consequently, the underlying issue is not the availability of oxygen in the environment or lungs, but rather the blood's inability to transport it effectively, making option B the correct response.

Other options describe different mechanisms of hypoxia. The first option refers to issues with lung function, which might involve conditions like respiratory diseases that prevent sufficient oxygen from reaching the bloodstream. The third option pertains to circulatory issues that might restrict blood flow, affecting oxygen delivery to tissues. Finally, the fourth option concerns the ability of cells to utilize oxygen, which is unrelated to the oxygen-carrying capacity of the blood itself but rather deals with cellular metabolism.