Which self-imposed habit can contribute to hypemic hypoxia?

Which self-imposed habit can contribute to hypemic hypoxia?

• A. Alcohol Use
• B. Tobacco Use
• C. Sleep Deprivation
• D. Poor Diet

Answer: (B)

Hypemic hypoxia occurs when the blood’s ability to carry oxygen is reduced because hemoglobin can’t bind or deliver oxygen effectively. The self-imposed habit that most directly causes this is tobacco use, since inhaled smoke introduces carbon monoxide. Carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, forming carboxyhemoglobin and preventing oxygen from binding where it’s needed. This lowers the blood’s oxygen-carrying capacity and delivery to tissues, even if the lungs are oxygenating normally. Alcohol use doesn’t change hemoglobin’s capacity to carry oxygen in the same way. Sleep deprivation doesn’t directly affect the oxygen-carrying capacity of blood. Poor diet can contribute to anemia over time, which can cause hypemic hypoxia, but it’s usually a slower, less immediate effect and not as direct a self-imposed habit as smoking.

Hypemic hypoxia occurs when the blood’s ability to carry oxygen is reduced because hemoglobin can’t bind or deliver oxygen effectively. The self-imposed habit that most directly causes this is tobacco use, since inhaled smoke introduces carbon monoxide. Carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, forming carboxyhemoglobin and preventing oxygen from binding where it’s needed. This lowers the blood’s oxygen-carrying capacity and delivery to tissues, even if the lungs are oxygenating normally.

Alcohol use doesn’t change hemoglobin’s capacity to carry oxygen in the same way. Sleep deprivation doesn’t directly affect the oxygen-carrying capacity of blood. Poor diet can contribute to anemia over time, which can cause hypemic hypoxia, but it’s usually a slower, less immediate effect and not as direct a self-imposed habit as smoking.