A nurse is preparing to assist a provider to withdraw arterial blood from a patient's radial artery for measurement of ABG. Which of the following actions should the nurse plan to take? 1. Hyperventilate the patient with 100% oxygen prior to obtaining the specimen. 2. Apply ice to the site after obtaining the specimen. 3. Perform an Allen's test prior to obtaining the specimen. 4. Release pressure applied to the puncture site 1 minute after the needle is withdrawn.



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