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Reduction of Risk Potential · Multiple choice · Take action

Before drawing an arterial blood gas from the radial artery, what should the nurse check?

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Correct answer: D

The Allen test (or a modified version) assesses ulnar artery flow to the hand in case the radial artery is damaged. Its value is debated, but it remains common practice.

Source: Lewis's Medical-Surgical Nursing, 13th ed. (arterial blood gas sampling)

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