What SpO2 range is generally considered normal in healthy adults?

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Multiple Choice

What SpO2 range is generally considered normal in healthy adults?

Explanation:
SpO2 measures how much hemoglobin in arterial blood is carrying oxygen. In healthy adults at sea level, the body keeps oxygen saturation high, and readings typically fall in the mid-to-upper 90s. The commonly accepted normal range is 95–100 percent. Readings at or above 95 indicate adequate arterial oxygenation, while values below about 90 percent suggest hypoxemia and warrant evaluation. Some people may momentarily read slightly below 95 due to factors like poor peripheral perfusion or measurement issues, but 95–100 percent remains the standard reference for normal in healthy adults.

SpO2 measures how much hemoglobin in arterial blood is carrying oxygen. In healthy adults at sea level, the body keeps oxygen saturation high, and readings typically fall in the mid-to-upper 90s. The commonly accepted normal range is 95–100 percent. Readings at or above 95 indicate adequate arterial oxygenation, while values below about 90 percent suggest hypoxemia and warrant evaluation. Some people may momentarily read slightly below 95 due to factors like poor peripheral perfusion or measurement issues, but 95–100 percent remains the standard reference for normal in healthy adults.

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