Patient Care Technician (PCT) AAH Practice Exam

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What is the correct term for a decrease in blood oxygen saturation?

Hyperoxia
Hypoxia
Hypotension
Hypothermia

The correct answer is: Hypoxia

The term that specifically refers to a decrease in blood oxygen saturation is hypoxia. Hypoxia occurs when there is insufficient oxygen available to the tissues, leading to symptoms such as shortness of breath, confusion, or cyanosis. This condition can arise from various factors, including respiratory illnesses, altitude changes, or circulatory problems, all of which can affect the amount of oxygen transported in the blood. In contrast, hyperoxia refers to an excess of oxygen in the body, which is not related to a decrease in saturation. Hypotension indicates low blood pressure rather than oxygen saturation, while hypothermia signifies a dangerously low body temperature. Thus, hypoxia is the precise term denoting reduced oxygen levels, making it the correct choice in this context.