What PO2 value range is considered poor?

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Prepare for the Clinical Sonography III Exam with comprehensive flashcards and multiple choice questions, each with hints and detailed explanations. Enhance your readiness for exam success!

Multiple Choice

What PO2 value range is considered poor?

Explanation:
PO2 reflects how much oxygen is dissolved in arterial blood. Normal arterial PO2 is about 75–100 mmHg. Values that are much lower indicate hypoxemia and insufficient oxygen delivery to tissues. Among the given ranges, 10–15 mmHg is profoundly low, signaling severe hypoxemia and therefore poor oxygenation. The other ranges are either near normal (70–90 mmHg) or only mildly-to-moderately low (25–40 mmHg, 50–60 mmHg), which are less severe than 10–15 mmHg.

PO2 reflects how much oxygen is dissolved in arterial blood. Normal arterial PO2 is about 75–100 mmHg. Values that are much lower indicate hypoxemia and insufficient oxygen delivery to tissues. Among the given ranges, 10–15 mmHg is profoundly low, signaling severe hypoxemia and therefore poor oxygenation. The other ranges are either near normal (70–90 mmHg) or only mildly-to-moderately low (25–40 mmHg, 50–60 mmHg), which are less severe than 10–15 mmHg.

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