After pressure is released in the modified Allen test,if color returns to the patient's palm within 5 seconds,the:

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If color returns to the patient's palm within 5 seconds after pressure is released in the modified Allen test, it indicates that there is adequate collateral circulation through the ulnar artery. Therefore, the radial artery can be safely punctured for procedures such as arterial blood gas sampling or intravascular cannulation. Option B is incorrect because the ulnar artery does not need to be used if there is good collateral circulation. Option C is also incorrect because using the brachial artery instead of the radial artery is not necessary if the modified Allen test is normal. Option D is unnecessary if there is a good result from the initial modified Allen test.

After Pressure Is Released in the Modified Allen Test,if Color