Which of the following control materials would be best suited for quality control of a PO₂electrode used to measure O₂tensions less than 50 mm Hg? A) Fluorocarbon-based control B) Aqueous-based control C) Tonometered buffer D) Tonometered whole blood

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Tonometered whole blood is best suited for quality control of electrodes measuring oxygen tensions less than 50 mm Hg because it closely mimics the physiological conditions and composition of blood, providing the most accurate and relevant control material for such measurements.

Which of the Following Control Materials Would Be Best Suited